Categories

The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.

• 1802 births (1 member)
• 1829 deaths (1 member)
• 1931 establishments in Pennsylvania (1 member)
• 1934 births (1 member)
• 1952–1954: Entities established during Edoardo Amaldi's mandate (2 members)
• 1954–1955: Entities established during Felix Bloch's mandate (2 members)
• 1955 births (2 members)
• 1955–1960: Entities established during Cornelis Bakker's mandate (2 members)
• 1960–1961: Entities established during John Adams' mandate (2 members)
• 1961–1965: Entities established during Victor Weisskopf's mandate (3 members)
• 1966–1970: Entities established during Bernard Gregory's mandate (2 members)
• 1971–1975: Entities established during Willibald Jentschke's and John Adams' mandate (1 member)
• 1976–1980: Entities established during Léon Van Hove's and John Adams' mandate (3 members)
• 1981–1988: Entities established during Herwig Schopper's mandate (1 member)
• 1989–1993: Entities established during Carlo Rubbia's mandate (3 members)
• 1994–1998: Entities established during Christopher Llewellyn Smith's mandate (2 members)
• 1999–2003: Entities established during Luciano Maiani's mandate (1 member)
• 19th-century Norwegian mathematicians (1 member)
• 19th-century deaths from tuberculosis (1 member)
• 2004–2008: Entities established during Robert Aymar's mandate (0 members)
• 2009–2015: Entities established during Rolf Heuer's mandate (2 members)
• 2016–2025: Entities established during Fabiola Gianotti's mandates (3 members)
• 2026–2030: Entities established during Mark Thomson's mandate (1 member)
• 2026–2030 Entities established during Mark Thomson's mandate (0 members)
• 20th-century Italian physicists (1 member)
• AD experiments (12 members)
• Abbreviations (578 members)
• Academic staff of the University of Milan (1 member)
• Accelerator physicists (8 members)
• Accelerator physics (1 member)
• Administrators (25 members)
• All free media (1 member)
• Anecdotes (0 members)
• Anomalies (1 member)
• Articles with hCards (3 members)
• Articles with short description (5 members)
• Biography with signature (1 member)
• Bridges completed in 1931 (1 member)
• Bridges in Allegheny County, Pennsylvania (1 member)
• Bridges over the Youghiogheny River (1 member)
• Bubble chambers operated at CERN (2 members)
• Buildings (3 members)
• Busts, sculptures and other artworks (3 members)
• CERN (13 members)
• CERN Associate Member States (1 member)
• CERN Council and subsidiary bodies to the Council (5 members)
• CERN Member States (1 member)
• CERN Non-Member States (2 members)
• CERN Observers (4 members)
• CERN administrative entities (8 members)