The 10s decade ran from January 1, AD 10, to December 31, AD 19.
The 20s decade ran from January 1, AD 20, to December 31, AD 29.
The 30s decade ran from January 1, AD 30, to December 31, AD 39.
The 40s decade ran from January 1, AD 40, to December 31, AD 49.
The 50s decade ran from January 1, 50, to December 31, 59. It was the sixth decade in the Anno Domini/Common Era, if the nine-year period from 1 AD to 9 AD is considered as a "decade".
The 1st century BC, also known as the last century BC and the last century BCE, started on the first day of 100 BC and ended on the last day of 1 BC. The AD/BC notation does not use a year zero; however, astronomical year numbering does use a zero, as well as a minus sign, so "2 BC" is equal to "year –1". 1st century AD follows.
AD 4 was a common year starting on Wednesday or a leap year starting on Tuesday of the Julian calendar and a leap year starting on Tuesday of the Proleptic Julian calendar. In the Roman Empire, it was known as the Year of the Consulship of Catus and Saturninus. The denomination "AD 4" for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
The 0s BC were the period between 9 BC and 1 BC, the last nine years of the before Christ era. It is one of two "0-to-9" decade-like timespans that contain nine years, along with the 0s.
The 130s decade ran from January 1, 130, to December 31, 139.
The 170s decade ran from January 1, 170, to December 31, 179.
Year 165 (CLXV) was a common year starting on Monday of the Julian calendar. At the time, it was known as the Year of the Consulship of Orfitus and Pudens. The denomination 165 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
This article concerns the period 59 BC – 50 BC.
This article concerns the period 19 BC – 10 BC.
Year 179 (CLXXIX) was a common year starting on Thursday of the Julian calendar. At the time, it was known as the Year of the Consulship of Aurelius and Veru. The denomination 179 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Year 4 BC was a common year starting on Tuesday or Wednesday of the Julian calendar and a common year starting on Monday of the Proleptic Julian calendar. At the time, it was known as the Year of the Consulship of Sabinus and Rufus. The denomination 4 BC for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Year 57 BC was a year of the pre-Julian Roman calendar. Contemporaneously, in the Roman Republic, it was known as the Year of the Consulship of Lentulus and Metellus. The denomination 57 BC for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Legio I Germanica,, was a legion of the Imperial Roman army, possibly founded in 48 BC by Julius Caesar to fight for him in the civil war against Pompey. The title germanic is a reference to its service in the Germanic Wars, rather than the place of origin of its soldiers. After the Revolt of the Batavi, the remaining men of the Germanica were added to Galba's seventh legion, which became VII Gemina. The emblem of Legio I is unknown, but it was probably Taurus, like all the other legions levied by Caesar.
The 0s began on January 1, 1 AD and ended on December 31, 9 AD, 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. Estimates for the world population by 1 AD range from 150 to 300 million.
