The 18th century lasted from January 1, 1701 to December 31, 1800. The term is often used to refer to the 1700s, the century between January 1, 1700 and December 31, 1799. During the 18th century, elements of Enlightenment thinking culminated in the American, French, and Haitian revolutions. During the century, slave trading and human trafficking expanded on a global scale. Revolutions began to challenge the legitimacy of monarchical and aristocratic power structures, including the structures and beliefs that supported the slave trade.
The 1730s decade ran from January 1, 1730, to December 31, 1739.
1730 (MDCCXXX) was a common year starting on Sunday of the Gregorian calendar and a common year starting on Thursday of the Julian calendar, the 1730th year of the Common Era (CE) and Anno Domini (AD) designations, the 730th year of the 2nd millennium, the 30th year of the 18th century, and the 1st year of the 1730s decade. As of the start of 1730, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.
1720 (MDCCXX) was a leap year starting on Monday of the Gregorian calendar and a leap year starting on Friday of the Julian calendar, the 1720th year of the Common Era (CE) and Anno Domini (AD) designations, the 720th year of the 2nd millennium, the 20th year of the 18th century, and the 1st year of the 1720s decade. As of the start of 1720, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.
1800 (MDCCC) was an exceptional common year starting on Wednesday of the Gregorian calendar and a leap year starting on Sunday of the Julian calendar, the 1800th year of the Common Era (CE) and Anno Domini (AD) designations, the 800th year of the 2nd millennium, the 100th and last year of the 18th century, and the 1st year of the 1800s decade. As of the start of 1800, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.
1803 (MDCCCIII) was a common year starting on Saturday of the Gregorian calendar and a common year starting on Thursday of the Julian calendar, the 1803rd year of the Common Era (CE) and Anno Domini (AD) designations, the 803rd year of the 2nd millennium, the 3rd year of the 19th century, and the 4th year of the 1800s decade. As of the start of 1803, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.
1670 (MDCLXX) was a common year starting on Wednesday of the Gregorian calendar and a common year starting on Saturday of the Julian calendar, the 1670th year of the Common Era (CE) and Anno Domini (AD) designations, the 670th year of the 2nd millennium, the 70th year of the 17th century, and the 1st year of the 1670s decade. As of the start of 1670, the Gregorian calendar was 10 days ahead of the Julian calendar, which remained in localized use until 1923.
1775 (MDCCLXXV) was a common year starting on Sunday of the Gregorian calendar and a common year starting on Thursday of the Julian calendar, the 1775th year of the Common Era (CE) and Anno Domini (AD) designations, the 775th year of the 2nd millennium, the 75th year of the 18th century, and the 6th year of the 1770s decade. As of the start of 1775, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.
1768 (MDCCLXVIII) was a leap year starting on Friday of the Gregorian calendar and a leap year starting on Tuesday of the Julian calendar, the 1768th year of the Common Era (CE) and Anno Domini (AD) designations, the 768th year of the 2nd millennium, the 68th year of the 18th century, and the 9th year of the 1760s decade. As of the start of 1768, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.
1761 (MDCCLXI) was a common year starting on Thursday of the Gregorian calendar and a common year starting on Monday of the Julian calendar, the 1761st year of the Common Era (CE) and Anno Domini (AD) designations, the 761st year of the 2nd millennium, the 61st year of the 18th century, and the 2nd year of the 1760s decade. As of the start of 1761, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.
1753 (MDCCLIII) was a common year starting on Monday of the Gregorian calendar and a common year starting on Friday of the Julian calendar, the 1753rd year of the Common Era (CE) and Anno Domini (AD) designations, the 753rd year of the 2nd millennium, the 53rd year of the 18th century, and the 4th year of the 1750s decade. As of the start of 1753, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.
1741 (MDCCXLI) was a common year starting on Sunday of the Gregorian calendar and a common year starting on Thursday of the Julian calendar, the 1741st year of the Common Era (CE) and Anno Domini (AD) designations, the 741st year of the 2nd millennium, the 41st year of the 18th century, and the 2nd year of the 1740s decade. As of the start of 1741, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.
1738 (MDCCXXXVIII) was a common year starting on Wednesday of the Gregorian calendar and a common year starting on Sunday of the Julian calendar, the 1738th year of the Common Era (CE) and Anno Domini (AD) designations, the 738th year of the 2nd millennium, the 38th year of the 18th century, and the 9th year of the 1730s decade. As of the start of 1738, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.
1737 (MDCCXXXVII) was a common year starting on Tuesday of the Gregorian calendar and a common year starting on Saturday of the Julian calendar, the 1737th year of the Common Era (CE) and Anno Domini (AD) designations, the 737th year of the 2nd millennium, the 37th year of the 18th century, and the 8th year of the 1730s decade. As of the start of 1737, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.
1736 (MDCCXXXVI) was a leap year starting on Sunday of the Gregorian calendar and a leap year starting on Thursday of the Julian calendar, the 1736th year of the Common Era (CE) and Anno Domini (AD) designations, the 736th year of the 2nd millennium, the 36th year of the 18th century, and the 7th year of the 1730s decade. As of the start of 1736, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.
1733 (MDCCXXXIII) was a common year starting on Thursday of the Gregorian calendar and a common year starting on Monday of the Julian calendar, the 1733rd year of the Common Era (CE) and Anno Domini (AD) designations, the 733rd year of the 2nd millennium, the 33rd year of the 18th century, and the 4th year of the 1730s decade. As of the start of 1733, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.
1724 (MDCCXXIV) was a leap year starting on Saturday of the Gregorian calendar and a leap year starting on Wednesday of the Julian calendar, the 1724th year of the Common Era (CE) and Anno Domini (AD) designations, the 724th year of the 2nd millennium, the 24th year of the 18th century, and the 5th year of the 1720s decade. As of the start of 1724, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.
1654 (MDCLIV) was a common year starting on Thursday of the Gregorian calendar and a common year starting on Sunday of the Julian calendar, the 1654th year of the Common Era (CE) and Anno Domini (AD) designations, the 654th year of the 2nd millennium, the 54th year of the 17th century, and the 5th year of the 1650s decade. As of the start of 1654, the Gregorian calendar was 10 days ahead of the Julian calendar, which remained in localized use until 1923.
1705 (MDCCV) was a common year starting on Thursday of the Gregorian calendar and a common year starting on Monday of the Julian calendar, the 1705th year of the Common Era (CE) and Anno Domini (AD) designations, the 705th year of the 2nd millennium, the 5th year of the 18th century, and the 6th year of the 1700s decade. As of the start of 1705, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.
1696 (MDCXCVI) was a leap year starting on Sunday of the Gregorian calendar and a leap year starting on Wednesday of the Julian calendar, the 1696th year of the Common Era (CE) and Anno Domini (AD) designations, the 696th year of the 2nd millennium, the 96th year of the 17th century, and the 7th year of the 1690s decade. As of the start of 1696, the Gregorian calendar was 10 days ahead of the Julian calendar, which remained in localized use until 1923.
