2000s in the context of 2004

2000 (MM) was a century leap year starting on Saturday of the Gregorian calendar, the 2000th year of the Common Era (CE) and Anno Domini (AD) designations, the 1000th and last year of the 2nd millennium, the 100th and last year of the 20th century, and the 1st year of the 2000s decade.

2000 was designated as the International Year for the Culture of Peace and the World Mathematical Year.

Black Eyed Peas are an American musical group formed in Los Angeles in 1992, composed of rappers will.i.am, apl.de.ap and Taboo. Fergie was a member during the height of their popularity in the 2000s, and left the group in 2018. They have sold an estimated 80 million records, making them one of the best-selling musical acts of all time; they were ranked 12th on Billboard's 2000s Decade-End Artist of the Decade Chart and 7th on the Hot 100 Artists of the Decade.

Originally forming as an alternative hip hop trio, they signed with Interscope Records to release two albums—Behind the Front (1998) and Bridging the Gap (2000)—before rebranding to a more marketable pop-rap act; their third album, Elephunk (2003), yielded the group's mainstream breakthrough. Its lead single, "Where Is the Love?" (featuring Justin Timberlake), peaked atop music charts in 13 countries, including the United Kingdom, where it spent seven weeks at number one and became the country's biggest-selling single of that year. Their fourth album, Monkey Business (2005), was met with continued commercial success; it received triple platinum certification by the Recording Industry Association of America (RIAA) and peaked at number two on the Billboard 200.

2008 (MMVIII) was a leap year starting on Tuesday of the Gregorian calendar, the 2008th year of the Common Era (CE) and Anno Domini (AD) designations, the 8th year of the 3rd millennium and the 21st century, and the 9th year of the 2000s decade.

2001 (MMI) was a common year starting on Monday of the Gregorian calendar, the 2001st year of the Common Era (CE) and Anno Domini (AD) designations, the 1st year of the 3rd millennium and the 21st century, and the 2nd year of the 2000s decade.

The year's most prominent event was the September 11 attacks against the United States by al-Qaeda, which killed 2,977 people and instigated the global war on terror. The United States led a multi-national coalition in an invasion of Afghanistan after the Taliban government was unable to extradite Al-Qaeda leader Osama bin Laden within 24 hours. Other international conflicts in 2001 were the standoff between India and Pakistan as well as the Second Intifada between Israel and Palestine. Internal conflicts began in Macedonia, in the Central African Republic, and in Guinea. Political challenges or violent conflicts caused changes in leadership in Argentina, the Democratic Republic of the Congo, Indonesia, Nepal, and the Philippines.