The world population on January 1, 2001, was estimated to be 6.190 billion people and increased to 6.272 billion … See more

There were 34 active armed conflicts in 28 countries in 2001, the total numbers remaining unchanged from 2000. The majority of these conflicts took place in Africa and Asia: 14 occurred in Africa and 13 occurre… See more

New buildings constructed or opened in 2001 include the Bibliotheca Alexandrina in Alexandria, the Sendai Mediatheque in Sendai, the DG Bank building in Berlin, the SEG Apartment Tower [de] in Vienna, and Aurora Place… See more

A minor economic decline took place among many developed economies in 2001. It was amplified by the dot-com crash, in which dot-com companies went out of business every day for much of the year due to an overvaluati… See more

2001 was the second hottest year on record at the time, exceeded only by 1998. The Intergovernmental Panel on Climate Change released its Third Assessment Report on July 12. It warned that climate change in t… See more

The World Health Organization (WHO) began a five-year program to reduce road injury fatalities following a warning of the problem's severity by the Red Cross the previous year. The WHO's Commission on Macroecon… See more