2nd millennium

Millennia: 1st millennium · 2nd millennium · 3rd millennium
Centuries: 11th century · 12th century · 13th century · 14th century · 15th century · 16th century · 17th century · 18th century · 19th century · 20th century

The 2nd millennium began on January 1, 1001 and ended on December 31, 2000. The Julian calendar was used in Europe at the beginning of the second millennium, and many countries that continued using the Julian calendar had adopted the Gregorian calendar by the end of the second millennium before it ended. The end date is only calculated according to the Gregorian calendar, while the beginning date is calculated according to the Julian calendar, and sometimes the proleptic Gregorian calendar.

Centuries and decades

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
21st century 2000s 2010s 2020s 2030s 2040s 2050s 2060s 2070s 2080s 2090s