- Millennium celebrations: The world celebrated the arrival of the new millennium on January 1, 2000. There were grand parties, fireworks displays, and cultural events held around the globe to mark the historic occasion.
- Technology advancements: The year saw significant advancements in technology. The dot-com bubble was at its peak, and the internet transformed communications, entertainment, and business practices. Mobile phones became increasingly popular, and new gadgets like MP3 players and digital cameras were introduced.
- Sydney Olympics: The 2000 Summer Olympics were held in Sydney, Australia, from September 15 to October 1. The event brought together athletes from around the world and showcased outstanding performances in various sports, including Cathy Freeman's historic gold medal in the women's 400-meter race.
- George W. Bush becomes President: George W. Bush was elected as the 43rd President of the United States, defeating incumbent Vice President Al Gore in a hotly contested election. The outcome was decided by a Supreme Court ruling, making it a highly controversial event.
- Human Genome Project: The Human Genome Project, an international scientific effort, was completed in 2000. It provided the first complete map of the human genetic code, which led to advancements in genetics and medicine.
- Dot-com bubble bursts: The technology industry experienced a significant downturn in 2000, leading to the bursting of the dot-com bubble. Several high-profile internet companies saw their stock values plummet and went out of business, marking the end of the era of rapid internet expansion.
- Bush v. Gore Supreme Court case: The Supreme Court case of Bush v. Gore was a landmark decision that ultimately decided the outcome of the 2000 presidential election. The Court ruled in favor of George W. Bush, resulting in a narrow victory over Al Gore.
- Concorde disaster: The tragic crash of Air France Concorde Flight 4590 occurred on July 25, 2000, near Paris. The supersonic passenger jet caught fire shortly after takeoff, resulting in the deaths of all 109 people on board.
- UN Millennium Development Goals: The United Nations adopted the Millennium Development Goals (MDGs) in 2000, setting out eight goals aimed at reducing poverty, improving education and health, and achieving gender equality. These goals guided global development efforts for the next 15 years.