Question

wht 2000 is known as 21st century and not 20th century?

Answer 1

yes ,2000 is known as 21st century

Answer 2

Answer: We live in the 21st Century, that is, the 2000s. Similarly when we say "20th Century," we are referring to the 1900s. All this because, according to the calendar we use, the 1st Century included the years 1-100 , and the 2nd Century, the years 101-200.