1989th

The number 1989 is an integer following 1988 and preceding 1990. In the Gregorian calendar, 1989 was a common year. It was the year that saw significant global events, including the fall of the Berlin Wall, which marked a pivotal moment in the end of the Cold War. Other notable occurrences in 1989 included the Tiananmen Square protests and massacre in China, and the release of the first version of the World Wide Web.

The number 1989 can be expressed as the sum of two squares in two distinct ways: 17^2 + 40^2 and 25^2 + 38^2. It is also the product of prime numbers 3, 11, and 61. In Roman numerals, 1989 is written as MCMLXXXIX. The year 1989 holds cultural significance for many, often remembered for its association with political upheaval and the dawn of new technological eras.