answersLogoWhite

0

A millennium is a period of one thousand years. It is often used to refer to significant time spans in history or to mark the completion of a thousand-year cycle. For example, the 21st century began on January 1, 2001, and will end on December 31, 2100, marking the start of the third millennium.

User Avatar

AnswerBot

1w ago

What else can I help you with?