The Islamic calendar year 2000, also known as the Hijri year 1421 AH, marks a significant milestone in the history of Islam. In this year, many events took place that had far-reaching consequences for the world.

One of the most notable events of the year was the sentencing of five Bosnian Croats to up to 25 years in prison by the United Nations' International Criminal Tribunal for the former Yugoslavia. The tribunal convicted them of the 1993 killing of more than 100 Bosnian Muslims, a heinous crime that shocked the world.

Another significant event of the year was the announcement of America Online's agreement to purchase Time Warner for $162 billion, the largest-ever corporate merger in history. This deal marked a major shift in the global technology and media landscape.

In addition to these events, 2000 was also the year when many companies around the world converted to new software or upgraded their existing systems to address Y2K concerns. The fears of widespread computer failures due to the Millennium Bug were largely alleviated, but not without some disruptions.

The Islamic calendar year 2000 is also notable for its designation as the International Year for the Culture of Peace and the World Mathematical Year by the Gregorian calendar. This recognition highlights the importance of peace and mathematics in promoting human understanding and progress.

For Muslims around the world, 2000 was a significant year because it marked the beginning of a new Islamic era. The Hijri calendar is based on the migration of Prophet Mohammed (peace be upon him) from Mecca to Medina, which occurred in 622 CE. The Islamic calendar is a lunar calendar that is approximately 11 days shorter than the Gregorian calendar.

In conclusion, the Islamic calendar year 2000 was marked by significant events and milestones that had far-reaching consequences for the world. It was a year of great change and transformation, both in the world of technology and in the realm of human understanding.