Sixteenth century.
The 11th century 0-99 is 1st century 100-199 2nd century 200-299 3rd century .. .. .. .. 900-999 10th century 1000-1099 11th century .. .. .. .. 1900-1999 20th century 2000-2099 21st century
From 1901 to 2001, this century was called the Twentieth century. This is because the first century did not begin in the year of Zero. It began at the year of one. Thus the first century ended on January 1, the century of one.
Because years 1-100 are in the first century; years 101-200 are in the second century, and so on... 2010 is in the 21st century.
3901
9bc
12 B.c is the year after 11 B.c
873-984-9bc
Millennium (1000 years)
18th century
Sixteenth century.
the 19th Century, the 18th Century, the 4th Century BC A century is 100 years
The Century - Century City - was created in 2009.
1873 was the 19th century (1800-1899).
1st century 1-100, 2nd century 101-200, 3rd century 201-300, 4th century 301-400, 5th century 401-500, 6th century 501-600, 7th century 601-700, 8th century 701-800, 9th century 801-900 10th century 901-1000, 11th century 1001-1100, 12th century 1101-1200, 13th century 1201-1300, 14th century 1301-1400, 15th century 1401-1500, 16th century 1501-1600, 17th century 1601-1700, 18th century 1701-1800, 19th century 1801-1900, 20th century 1901-2000, 21st century 2001-2100
The 20th century
We are in the 21st Century.