Recurring events established in 2001

holiday celebrating the works of Douglas Adams

Annual environmental-themed beauty contest

United Nations day on 19 November to tackle the sanitation crisis

'''Free and Open source Software Developers' European Meeting (FOSDEM''') is an annual software engineering conference. It is non-commercial and volunteer-organized with a focus on free and open-source software. Initiated in 2000, it is usually held during the first weekend of February, at the of the Université libre de Bruxelles (ULB) in the southeast of Brussels, Belgium.

United States public holiday commemorating the September 11 attacks on the United States

an annual trade fair for books since 2001

LGBT pride parade in Warsaw

annual gay and lesbian pride parade in Cape Town, South Africa

WWE pay-per-view

concert tour

reggae music festival in Ostróda, Poland

American biology and medizine award

Microsoft trade show for Xbox

annual airshow and military security show in the Czech Republic

Motor Racing Series

costume and fantasy festival

annual LGBT event in Porto, Portugal

global event

thumb|250px|The FOSS.IN logo FOSS.IN, previously known as Linux Bangalore, was an annual free and open source software (FOSS) conference, held in Bangalore, India from 2001 to 2012. From 2001 to 2004, it was known as Linux Bangalore, before it took on a new name and wider focus. During its lifetime, it was one of the largest FOSS events in Asia, with participants from around the world. It focused on the technical and software side of FOSS, encouraging development and contribution to FOSS projects from India. The event was held every year in late November or early December.

Czech anti-abortion demonstration

pride parade in Ljubljana, Slovenia

German mathematics award (2001-)

fashion and music event in Berlin