The tenth century spans the years from 901 - 1000. Note that not all people agree on this, and many believe that 1000 is the first year of the eleventh century; but if you count 100 years at once, starting at year 1, the situation is quite clear: the 1st. century is from 1-100, the 2nd century is from 101-200, etc.
999 is the final year of the 10th century 1000 is the first year of the 11th century.
The 20th century. We add 1 to the first two digits to get the century. This is since the first century is classed as the years 0 to 999, the 2nd century the years 1000 to 1999 etc.
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
86400 seconds in a day.365 x 86400 = 31536000 seconds in a year.100 x 31536000 = 3153600000 seconds in a century.1000 x 3153600000 = 3153600000000 milliseconds in a century.
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999 is the final year of the 10th century 1000 is the first year of the 11th century.
18th centurery
The year 1031 was the 11th century (years 1000-1099).
The year 1066 was the 11th century (years 1000-1099).
1000 AD
A year is 365 days and a century is 100 years. A millenium is 1000 years
If you were born in 1997, you would belong to the 20th century as the 21st century began in the year 2001.
Technically, it belongs to the 20th century. the 21st century didn't start until Jan. 1st 2001.
the year 1000 AD or CE
The year 721 was in the 8th century. Someone can determine what century a year is by adding one to whichever number is listed first in the year, and when the year got to 4 digits, it would go by the first 2 numbers.
The year 1001 BC, as with any year between 1099 BC and 1000 BC, fell in the eleventh century BC.
1000 A century is classified every 100 years. Since there was no year 0, We count centuries from the year 1 to 100. Thus the second century began in the year 101. We live in the 21st century because it is 2009.