List of decades, centuries, and millennia

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The list below includes links to articles with further details for each decade, century, and millennium from 13,000 BC to AD 3000.

13th millennium BC · 13,000–12,001 BC
130th century BC12,990s BC12,980s BC12,970s BC12,960s BC12,950s BC12,940s BC12,930s BC12,920s BC12,910s BC12,900s BC
129th century BC12,890s BC12,880s BC12,870s BC12,860s BC12,850s BC12,840s BC12,830s BC12,820s BC12,810s BC12,800s BC
128th century BC12,790s BC12,780s BC12,770s BC12,760s BC12,750s BC12,740s BC12,730s BC12,720s BC12,710s BC12,700s BC
127th century BC12,690s BC12,680s BC12,670s BC12,660s BC12,650s BC12,640s BC12,630s BC12,620s BC12,610s BC12,600s BC
126th century BC12,590s BC12,580s BC12,570s BC12,560s BC12,550s BC12,540s BC12,530s BC12,520s BC12,510s BC12,500s BC
125th century BC12,490s BC12,480s BC12,470s BC12,460s BC12,450s BC12,440s BC12,430s BC12,420s BC12,410s BC12,400s BC
124th century BC12,390s BC12,380s BC12,370s BC12,360s BC12,350s BC12,340s BC12,330s BC12,320s BC12,310s BC12,300s BC
123rd century BC12,290s BC12,280s BC12,270s BC12,260s BC12,250s BC12,240s BC12,230s BC12,220s BC12,210s BC12,200s BC
122nd century BC12,190s BC12,180s BC12,170s BC12,160s BC12,150s BC12,140s BC12,130s BC12,120s BC12,110s BC12,100s BC
121st century BC12,090s BC12,080s BC12,070s BC12,060s BC12,050s BC12,040s BC12,030s BC12,020s BC12,010s BC12,000s BC
12th millennium BC · 12,000–11,001 BC
120th century BC11,990s BC11,980s BC11,970s BC11,960s BC11,950s BC11,940s BC11,930s BC11,920s BC11,910s BC11,900s BC
119th century BC11,890s BC11,880s BC11,870s BC11,860s BC11,850s BC11,840s BC11,830s BC11,820s BC11,810s BC11,800s BC
118th century BC11,790s BC11,780s BC11,770s BC11,760s BC11,750s BC11,740s BC11,730s BC11,720s BC11,710s BC11,700s BC
117th century BC11,690s BC11,680s BC11,670s BC11,660s BC11,650s BC11,640s BC11,630s BC11,620s BC11,610s BC11,600s BC
116th century BC11,590s BC11,580s BC11,570s BC11,560s BC11,550s BC11,540s BC11,530s BC11,520s BC11,510s BC11,500s BC
115th century BC11,490s BC11,480s BC11,470s BC11,460s BC11,450s BC11,440s BC11,430s BC11,420s BC11,410s BC11,400s BC
114th century BC11,390s BC11,380s BC11,370s BC11,360s BC11,350s BC11,340s BC11,330s BC11,320s BC11,310s BC11,300s BC
113th century BC11,290s BC11,280s BC11,270s BC11,260s BC11,250s BC11,240s BC11,230s BC11,220s BC11,210s BC11,200s BC
112th century BC11,190s BC11,180s BC11,170s BC11,160s BC11,150s BC11,140s BC11,130s BC11,120s BC11,110s BC11,100s BC
111th century BC11,090s BC11,080s BC11,070s BC11,060s BC11,050s BC11,040s BC11,030s BC11,020s BC11,010s BC11,000s BC
11th millennium BC · 11,000–10,001 BC
110th century BC10,990s BC10,980s BC10,970s BC10,960s BC10,950s BC10,940s BC10,930s BC10,920s BC10,910s BC10,900s BC
109th century BC10,890s BC10,880s BC10,870s BC10,860s BC10,850s BC10,840s BC10,830s BC10,820s BC10,810s BC10,800s BC
108th century BC10,790s BC10,780s BC10,770s BC10,760s BC10,750s BC10,740s BC10,730s BC10,720s BC10,710s BC10,700s BC
107th century BC10,690s BC10,680s BC10,670s BC10,660s BC10,650s BC10,640s BC10,630s BC10,620s BC10,610s BC10,600s BC
106th century BC10,590s BC10,580s BC10,570s BC10,560s BC10,550s BC10,540s BC10,530s BC10,520s BC10,510s BC10,500s BC
105th century BC10,490s BC10,480s BC10,470s BC10,460s BC10,450s BC10,440s BC10,430s BC10,420s BC10,410s BC10,400s BC
104th century BC10,390s BC10,380s BC10,370s BC10,360s BC10,350s BC10,340s BC10,330s BC10,320s BC10,310s BC10,300s BC
103rd century BC10,290s BC10,280s BC10,270s BC10,260s BC10,250s BC10,240s BC10,230s BC10,220s BC10,210s BC10,200s BC
102nd century BC10,190s BC10,180s BC10,170s BC10,160s BC10,150s BC10,140s BC10,130s BC10,120s BC10,110s BC10,100s BC
101st century BC10,090s BC10,080s BC10,070s BC10,060s BC10,050s BC10,040s BC10,030s BC10,020s BC10,010s BC10,000s BC
10th millennium BC · 10,000–9001 BC
100th century BC9990s BC9980s BC9970s BC9960s BC9950s BC9940s BC9930s BC9920s BC9910s BC9900s BC
99th century BC9890s BC9880s BC9870s BC9860s BC9850s BC9840s BC9830s BC9820s BC9810s BC9800s BC
98th century BC9790s BC9780s BC9770s BC9760s BC9750s BC9740s BC9730s BC9720s BC9710s BC9700s BC
97th century BC9690s BC9680s BC9670s BC9660s BC9650s BC9640s BC9630s BC9620s BC9610s BC9600s BC
96th century BC9590s BC9580s BC9570s BC9560s BC9550s BC9540s BC9530s BC9520s BC9510s BC9500s BC
95th century BC9490s BC9480s BC9470s BC9460s BC9450s BC9440s BC9430s BC9420s BC9410s BC9400s BC
94th century BC9390s BC9380s BC9370s BC9360s BC9350s BC9340s BC9330s BC9320s BC9310s BC9300s BC
93rd century BC9290s BC9280s BC9270s BC9260s BC9250s BC9240s BC9230s BC9220s BC9210s BC9200s BC
92nd century BC9190s BC9180s BC9170s BC9160s BC9150s BC9140s BC9130s BC9120s BC9110s BC9100s BC
91st century BC9090s BC9080s BC9070s BC9060s BC9050s BC9040s BC9030s BC9020s BC9010s BC9000s BC
9th millennium BC · 9000–8001 BC
90th century BC8990s BC8980s BC8970s BC8960s BC8950s BC8940s BC8930s BC8920s BC8910s BC8900s BC
89th century BC8890s BC8880s BC8870s BC8860s BC8850s BC8840s BC8830s BC8820s BC8810s BC8800s BC
88th century BC8790s BC8780s BC8770s BC8760s BC8750s BC8740s BC8730s BC8720s BC8710s BC8700s BC
87th century BC8690s BC8680s BC8670s BC8660s BC8650s BC8640s BC8630s BC8620s BC8610s BC8600s BC
86th century BC8590s BC8580s BC8570s BC8560s BC8550s BC8540s BC8530s BC8520s BC8510s BC8500s BC
85th century BC8490s BC8480s BC8470s BC8460s BC8450s BC8440s BC8430s BC8420s BC8410s BC8400s BC
84th century BC8390s BC8380s BC8370s BC8360s BC8350s BC8340s BC8330s BC8320s BC8310s BC8300s BC
83rd century BC8290s BC8280s BC8270s BC8260s BC8250s BC8240s BC8230s BC8220s BC8210s BC8200s BC
82nd century BC8190s BC8180s BC8170s BC8160s BC8150s BC8140s BC8130s BC8120s BC8110s BC8100s BC
81st century BC8090s BC8080s BC8070s BC8060s BC8050s BC8040s BC8030s BC8020s BC8010s BC8000s BC
8th millennium BC · 8000–7001 BC
80th century BC7990s BC7980s BC7970s BC7960s BC7950s BC7940s BC7930s BC7920s BC7910s BC7900s BC
79th century BC7890s BC7880s BC7870s BC7860s BC7850s BC7840s BC7830s BC7820s BC7810s BC7800s BC
78th century BC7790s BC7780s BC7770s BC7760s BC7750s BC7740s BC7730s BC7720s BC7710s BC7700s BC
77th century BC7690s BC7680s BC7670s BC7660s BC7650s BC7640s BC7630s BC7620s BC7610s BC7600s BC
76th century BC7590s BC7580s BC7570s BC7560s BC7550s BC7540s BC7530s BC7520s BC7510s BC7500s BC
75th century BC7490s BC7480s BC7470s BC7460s BC7450s BC7440s BC7430s BC7420s BC7410s BC7400s BC
74th century BC7390s BC7380s BC7370s BC7360s BC7350s BC7340s BC7330s BC7320s BC7310s BC7300s BC
73rd century BC7290s BC7280s BC7270s BC7260s BC7250s BC7240s BC7230s BC7220s BC7210s BC7200s BC
72nd century BC7190s BC7180s BC7170s BC7160s BC7150s BC7140s BC7130s BC7120s BC7110s BC7100s BC
71st century BC7090s BC7080s BC7070s BC7060s BC7050s BC7040s BC7030s BC7020s BC7010s BC7000s BC
7th millennium BC · 7000–6001 BC
70th century BC6990s BC6980s BC6970s BC6960s BC6950s BC6940s BC6930s BC6920s BC6910s BC6900s BC
69th century BC6890s BC6880s BC6870s BC6860s BC6850s BC6840s BC6830s BC6820s BC6810s BC6800s BC
68th century BC6790s BC6780s BC6770s BC6760s BC6750s BC6740s BC6730s BC6720s BC6710s BC6700s BC
67th century BC6690s BC6680s BC6670s BC6660s BC6650s BC6640s BC6630s BC6620s BC6610s BC6600s BC
66th century BC6590s BC6580s BC6570s BC6560s BC6550s BC6540s BC6530s BC6520s BC6510s BC6500s BC
65th century BC6490s BC6480s BC6470s BC6460s BC6450s BC6440s BC6430s BC6420s BC6410s BC6400s BC
64th century BC6390s BC6380s BC6370s BC6360s BC6350s BC6340s BC6330s BC6320s BC6310s BC6300s BC
63rd century BC6290s BC6280s BC6270s BC6260s BC6250s BC6240s BC6230s BC6220s BC6210s BC6200s BC
62nd century BC6190s BC6180s BC6170s BC6160s BC6150s BC6140s BC6130s BC6120s BC6110s BC6100s BC
61st century BC6090s BC6080s BC6070s BC6060s BC6050s BC6040s BC6030s BC6020s BC6010s BC6000s BC
6th millennium BC · 6000–5001 BC
60th century BC5990s BC5980s BC5970s BC5960s BC5950s BC5940s BC5930s BC5920s BC5910s BC5900s BC
59th century BC5890s BC5880s BC5870s BC5860s BC5850s BC5840s BC5830s BC5820s BC5810s BC5800s BC
58th century BC5790s BC5780s BC5770s BC5760s BC5750s BC5740s BC5730s BC5720s BC5710s BC5700s BC
57th century BC5690s BC5680s BC5670s BC5660s BC5650s BC5640s BC5630s BC5620s BC5610s BC5600s BC
56th century BC5590s BC5580s BC5570s BC5560s BC5550s BC5540s BC5530s BC5520s BC5510s BC5500s BC
55th century BC5490s BC5480s BC5470s BC5460s BC5450s BC5440s BC5430s BC5420s BC5410s BC5400s BC
54th century BC5390s BC5380s BC5370s BC5360s BC5350s BC5340s BC5330s BC5320s BC5310s BC5300s BC
53rd century BC5290s BC5280s BC5270s BC5260s BC5250s BC5240s BC5230s BC5220s BC5210s BC5200s BC
52nd century BC5190s BC5180s BC5170s BC5160s BC5150s BC5140s BC5130s BC5120s BC5110s BC5100s BC
51st century BC5090s BC5080s BC5070s BC5060s BC5050s BC5040s BC5030s BC5020s BC5010s BC5000s BC
5th millennium BC · 5000–4001 BC
50th century BC4990s BC4980s BC4970s BC4960s BC4950s BC4940s BC4930s BC4920s BC4910s BC4900s BC
49th century BC4890s BC4880s BC4870s BC4860s BC4850s BC4840s BC4830s BC4820s BC4810s BC4800s BC
48th century BC4790s BC4780s BC4770s BC4760s BC4750s BC4740s BC4730s BC4720s BC4710s BC4700s BC
47th century BC4690s BC4680s BC4670s BC4660s BC4650s BC4640s BC4630s BC4620s BC4610s BC4600s BC
46th century BC4590s BC4580s BC4570s BC4560s BC4550s BC4540s BC4530s BC4520s BC4510s BC4500s BC
45th century BC4490s BC4480s BC4470s BC4460s BC4450s BC4440s BC4430s BC4420s BC4410s BC4400s BC
44th century BC4390s BC4380s BC4370s BC4360s BC4350s BC4340s BC4330s BC4320s BC4310s BC4300s BC
43rd century BC4290s BC4280s BC4270s BC4260s BC4250s BC4240s BC4230s BC4220s BC4210s BC4200s BC
42nd century BC4190s BC4180s BC4170s BC4160s BC4150s BC4140s BC4130s BC4120s BC4110s BC4100s BC
41st century BC4090s BC4080s BC4070s BC4060s BC4050s BC4040s BC4030s BC4020s BC4010s BC4000s BC
4th millennium BC · 4000–3001 BC
40th century BC 3990s BC3980s BC3970s BC3960s BC3950s BC3940s BC3930s BC3920s BC3910s BC3900s BC
39th century BC 3890s BC3880s BC3870s BC3860s BC3850s BC3840s BC3830s BC3820s BC3810s BC3800s BC
38th century BC 3790s BC3780s BC3770s BC3760s BC3750s BC3740s BC3730s BC3720s BC3710s BC3700s BC
37th century BC 3690s BC3680s BC3670s BC3660s BC3650s BC3640s BC3630s BC3620s BC3610s BC3600s BC
36th century BC 3590s BC3580s BC3570s BC3560s BC3550s BC3540s BC3530s BC3520s BC3510s BC3500s BC
35th century BC 3490s BC3480s BC3470s BC3460s BC3450s BC3440s BC3430s BC3420s BC3410s BC3400s BC
34th century BC 3390s BC3380s BC3370s BC3360s BC3350s BC3340s BC3330s BC3320s BC3310s BC3300s BC
33rd century BC 3290s BC3280s BC3270s BC3260s BC3250s BC3240s BC3230s BC3220s BC3210s BC3200s BC
32nd century BC 3190s BC3180s BC3170s BC3160s BC3150s BC3140s BC3130s BC3120s BC3110s BC3100s BC
31st century BC 3090s BC3080s BC3070s BC3060s BC3050s BC3040s BC3030s BC3020s BC3010s BC3000s BC
3rd millennium BC · 3000–2001 BC
30th century BC 2990s BC2980s BC2970s BC2960s BC2950s BC2940s BC2930s BC2920s BC2910s BC2900s BC
29th century BC 2890s BC2880s BC2870s BC2860s BC2850s BC2840s BC2830s BC2820s BC2810s BC2800s BC
28th century BC 2790s BC2780s BC2770s BC2760s BC2750s BC2740s BC2730s BC2720s BC2710s BC2700s BC
27th century BC 2690s BC2680s BC2670s BC2660s BC2650s BC2640s BC2630s BC2620s BC2610s BC2600s BC
26th century BC 2590s BC2580s BC2570s BC2560s BC2550s BC2540s BC2530s BC2520s BC2510s BC2500s BC
25th century BC 2490s BC2480s BC2470s BC2460s BC2450s BC2440s BC2430s BC2420s BC2410s BC2400s BC
24th century BC 2390s BC2380s BC2370s BC2360s BC2350s BC2340s BC2330s BC2320s BC2310s BC2300s BC
23rd century BC 2290s BC2280s BC2270s BC2260s BC2250s BC2240s BC2230s BC2220s BC2210s BC2200s BC
22nd century BC 2190s BC2180s BC2170s BC2160s BC2150s BC2140s BC2130s BC2120s BC2110s BC2100s BC
21st century BC 2090s BC2080s BC2070s BC2060s BC2050s BC2040s BC2030s BC2020s BC2010s BC2000s BC
2nd millennium BC · 2000–1001 BC
20th century BC 1990s BC1980s BC1970s BC1960s BC1950s BC1940s BC1930s BC1920s BC1910s BC1900s BC
19th century BC 1890s BC1880s BC1870s BC1860s BC1850s BC1840s BC1830s BC1820s BC1810s BC1800s BC
18th century BC 1790s BC 1780s BC 1770s BC 1760s BC 1750s BC 1740s BC 1730s BC 1720s BC 1710s BC 1700s BC
17th century BC 1690s BC 1680s BC 1670s BC 1660s BC 1650s BC 1640s BC 1630s BC 1620s BC 1610s BC 1600s BC
16th century BC 1590s BC 1580s BC 1570s BC 1560s BC 1550s BC 1540s BC 1530s BC 1520s BC 1510s BC 1500s BC
15th century BC 1490s BC 1480s BC 1470s BC 1460s BC 1450s BC 1440s BC 1430s BC 1420s BC 1410s BC 1400s BC
14th century BC 1390s BC 1380s BC 1370s BC 1360s BC 1350s BC 1340s BC 1330s BC 1320s BC 1310s BC 1300s BC
13th century BC 1290s BC 1280s BC 1270s BC 1260s BC 1250s BC 1240s BC 1230s BC 1220s BC 1210s BC 1200s BC
12th century BC 1190s BC 1180s BC 1170s BC 1160s BC 1150s BC 1140s BC 1130s BC 1120s BC 1110s BC 1100s BC
11th century BC 1090s BC 1080s BC 1070s BC 1060s BC 1050s BC 1040s BC 1030s BC 1020s BC 1010s BC 1000s BC
1st millennium BC · 1000–1 BC
10th century BC 990s BC 980s BC 970s BC 960s BC 950s BC 940s BC 930s BC 920s BC 910s BC 900s BC
9th century BC 890s BC 880s BC 870s BC 860s BC 850s BC 840s BC 830s BC 820s BC 810s BC 800s BC
8th century BC 790s BC 780s BC 770s BC 760s BC 750s BC 740s BC 730s BC 720s BC 710s BC 700s BC
7th century BC 690s BC 680s BC 670s BC 660s BC 650s BC 640s BC 630s BC 620s BC 610s BC 600s BC
6th century BC 590s BC 580s BC 570s BC 560s BC 550s BC 540s BC 530s BC 520s BC 510s BC 500s BC
5th century BC 490s BC 480s BC 470s BC 460s BC 450s BC 440s BC 430s BC 420s BC 410s BC 400s BC
4th century BC 390s BC 380s BC 370s BC 360s BC 350s BC 340s BC 330s BC 320s BC 310s BC 300s BC
3rd century BC 290s BC 280s BC 270s BC 260s BC 250s BC 240s BC 230s BC 220s BC 210s BC 200s BC
2nd century BC 190s BC 180s BC 170s BC 160s BC 150s BC 140s BC 130s BC 120s BC 110s BC 100s BC
1st century BC 90s BC 80s BC 70s BC 60s BC 50s BC 40s BC 30s BC 20s BC 10s BC 0s BC [note 1]
1st millennium · AD 1–1000
1st century 0s [note 2] 10s 20s 30s 40s 50s 60s 70s 80s 90s
2nd century 100s 110s 120s 130s 140s 150s 160s 170s 180s 190s
3rd century 200s 210s 220s 230s 240s 250s 260s 270s 280s 290s
4th century 300s 310s 320s 330s 340s 350s 360s 370s 380s 390s
5th century 400s 410s 420s 430s 440s 450s 460s 470s 480s 490s
6th century 500s 510s 520s 530s 540s 550s 560s 570s 580s 590s
7th century 600s 610s 620s 630s 640s 650s 660s 670s 680s 690s
8th century 700s 710s 720s 730s 740s 750s 760s 770s 780s 790s
9th century 800s 810s 820s 830s 840s 850s 860s 870s 880s 890s
10th century 900s 910s 920s 930s 940s 950s 960s 970s 980s 990s
2nd millennium · AD 1001–2000
11th century 1000s 1010s 1020s 1030s 1040s 1050s 1060s 1070s 1080s 1090s
12th century 1100s 1110s 1120s 1130s 1140s 1150s 1160s 1170s 1180s 1190s
13th century 1200s 1210s 1220s 1230s 1240s 1250s 1260s 1270s 1280s 1290s
14th century 1300s 1310s 1320s 1330s 1340s 1350s 1360s 1370s 1380s 1390s
15th century 1400s 1410s 1420s 1430s 1440s 1450s 1460s 1470s 1480s 1490s
16th century 1500s 1510s 1520s 1530s 1540s 1550s 1560s 1570s 1580s 1590s
17th century 1600s 1610s 1620s 1630s 1640s 1650s 1660s 1670s 1680s 1690s
18th century 1700s 1710s 1720s 1730s 1740s 1750s 1760s 1770s 1780s 1790s
19th century 1800s 1810s 1820s 1830s 1840s 1850s 1860s 1870s 1880s 1890s
20th century 1900s 1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s
3rd millennium · AD 2001–3000
21st century 2000s 2010s 2020s 2030s 2040s2050s2060s2070s2080s2090s
22nd century2100s2110s2120s2130s2140s2150s2160s2170s2180s2190s
23rd century2200s2210s2220s2230s2240s2250s2260s2270s2280s2290s
24th century2300s2310s2320s2330s2340s2350s2360s2370s2380s2390s
25th century2400s2410s2420s2430s2440s2450s2460s2470s2480s2490s
26th century2500s2510s2520s2530s2540s2550s2560s2570s2580s2590s
27th century2600s2610s2620s2630s2640s2650s2660s2670s2680s2690s
28th century2700s2710s2720s2730s2740s2750s2760s2770s2780s2790s
29th century2800s2810s2820s2830s2840s2850s2860s2870s2880s2890s
30th century2900s2910s2920s2930s2940s2950s2960s2970s2980s2990s


  1. 0s BC is not a true decade, as it contains only nine years.
  2. AD 0s is not a true decade, as it contains only nine years.

See also

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The history of calendars covers practices with ancient roots as people created and used various methods to keep track of days and larger divisions of time. Calendars commonly serve both cultural and practical purposes and are often connected to astronomy and agriculture.

<span class="mw-page-title-main">Olympiad</span> Period of four years associated with the Olympic Games of the Ancient Greeks

An olympiad is a period of four years, particularly those associated with the ancient and modern Olympic Games.

A decade is a period of ten years. Decades may describe any ten-year period, such as those of a person's life, or refer to specific groupings of calendar years.

The intercalary month or epagomenal days of the ancient Egyptian, Coptic, and Ethiopian calendars are a period of five days in common years and six days in leap years in addition to those calendars' 12 standard months, sometimes reckoned as their thirteenth month. They originated as a periodic measure to ensure that the heliacal rising of Sirius would occur in the 12th month of the Egyptian lunar calendar but became a regular feature of the civil calendar and its descendants. Coptic and Ethiopian leap days occur in the year preceding Julian and Gregorian leap years.

The Holocene calendar, also known as the Holocene Era or Human Era (HE), is a year numbering system that adds exactly 10,000 years to the currently dominant numbering scheme, placing its first year near the beginning of the Holocene geological epoch and the Neolithic Revolution, when humans shifted from a hunter-gatherer lifestyle to agriculture and fixed settlements. The current year by the Gregorian calendar, AD 2023, is 12023 HE in the Holocene calendar. The HE scheme was first proposed by Cesare Emiliani in 1993, though similar proposals to start a new calendar at the same date had been put forward decades earlier.

<span class="mw-page-title-main">Oceanian art</span> Artistic traditions of Oceania

Oceanic art or Oceanian art comprises the creative works made by the native people of the Pacific Islands and Australia, including areas as far apart as Hawaii and Easter Island. Specifically it comprises the works of the two groups of people who settled the area, though during two different periods. They would in time however, come to interact and together reach even more remote islands. The area is often broken down into four separate regions: Micronesia, Melanesia, Polynesia and Australia. Australia, along with interior Melanesia (Papua), are populated by descendants of the first waves of human migrations into the region by Australo-Melanesians. Micronesia, Island Melanesia, and Polynesia, on the other hand, are descendants of later Austronesian voyagers who intermixed with native Australo-Melanesians; mostly via the Neolithic Lapita culture. All of the regions in later times would be greatly affected by western influence and colonization. In more recent times, the people of Oceania have found a greater appreciation of their region's artistic heritage.

<span class="mw-page-title-main">Byzantine calendar</span> Calendar used by the Eastern Orthodox Church from c. 691 to 1728

The Byzantine calendar, also called the Roman calendar, the Creation Era of Constantinople or the Era of the World, was the calendar used by the Eastern Orthodox Church from c. 691 to 1728 in the Ecumenical Patriarchate. It was also the official calendar of the Byzantine Empire from 988 to 1453 and of Kievan Rus' and Russia from c. 988 to 1700. This calendar was used also in other areas of the Byzantine commonwealth such as in Serbia, where it is found in old Serbian legal documents such as Dušan's Code, thus being referred to as the Serbian Calendar as well. Since Byzantine is a historiographical term, the original name uses the adjective "Roman" as it was what the Eastern Roman Empire continued calling itself.

The Gregorian calendar is the calendar used in most parts of the world. It went into effect in October 1582 following the papal bull Inter gravissimas issued by Pope Gregory XIII, which introduced it as a modification of, and replacement for, the Julian calendar. The principal change was to space leap years differently so as to make the average calendar year 365.2425 days long, more closely approximating the 365.2422-day 'tropical' or 'solar' year that is determined by the Earth's revolution around the Sun.

The proleptic Gregorian calendar is produced by extending the Gregorian calendar backward to the dates preceding its official introduction in 1582. In nations that adopted the Gregorian calendar after its official and first introduction, dates occurring in the interim period of 15 October 1582 to the date on which the pertinent nation adopted the Gregorian calendar and abandoned the Julian calendar are sometimes 'Gregorianized' also. For example, the birthday of U.S. President George Washington was originally dated 11 February 1731 because Great Britain, of which he was born a subject, used the Julian calendar and dated the beginning of English years as 25 March. After Great Britain switched to the Gregorian calendar, Washington's birthday was dated 22 February 1732 proleptically, according to the Gregorian calendar applied backward. This remains the modern dating of his birthday.

<span class="mw-page-title-main">Puranic chronology</span> Timeline of Hindu history based on the Mahabharata, the Ramayana, and the Puranas

The Puranic chronology is a timeline of Hindu history based on the Mahabharata, the Ramayana, and the Puranas. The central dates here are the Kurukshetra War and the Lanka War with the start of the start and end of the Kali Yuga and the other yugas and all the other events in Hindu mythology.The Puranic chronology is referred to by proponents of Indigenous Aryans to propose an earlier dating of the Vedic period, and the spread of Indo-European languages out of India, arguing that "the Indian civilization must be viewed as an unbroken tradition that goes back to the earliest period of the Sindhu-Sarasvati Valley traditions ."

<span class="mw-page-title-main">0s</span> First 9 years of the Common Era

The 0s began on January 1, AD 1 and ended on December 31, AD 9, covering the first nine years of the Common Era. It is one of two "0-to-9" decade-like timespans that contain nine years, along with the 0s BC.