1999 (MCMXCIX) was a common year starting on Friday. It was the last year of the 1990s decade.
Based on popular culture, the year 1999 was the last year of the 20th Century and the 2nd millennium. However, based on traditional ways, the year 2000 was the last year of the 20th Century and the 2nd millennium. The year 1999 was designated the International Year of Older Persons by the United Nations.
