Why is this century referred to as the 21st century even though, numerically, the year is in the 2000?

Answer 1

Because the first century was from year 0 to year 100.

Answer 2

because nothing starts with zero, the first centruy wasn't the zero century. 1-100, 101-200, 201-300, 301-400, 401-500, 501-600, 601-700, 701-800, 801-900, 901-1000, 1001-1100, 1101-1200, 1201-1300, 1301-1400, 1401-1500, 1501-1600, 1601-1700, 1701-1800, 1801-1900, 1901-2000, 2001-2100.

Answer 3

because the years 0-99 are the first century, and 100-199 is the 2nd century, following this, the years 2000-2099 is the 21st century

Answer 4

The first century is like the first child's life it is 0 to 1.

Answer 5

the 1st century was from yr 1ad to 100ad, so year 100 to 200 was the second century, and so on, so counting the first as 1 to 100, this is the 21st.

Answer 6

Supposing that the first century started at year zero, then the second started at year 100AD. Following along the 21st century started at the beginning of 2000AD

Answer 7

All of the previous answers are correct, except for one very, very incorrect thing. The year 0 never existed! The first year of our era (Christian era, that is) was called, simply, year 1.