My contributions are primarily limited to fixing typos, though I sometimes fix errors if I recognize them. I try to start an article if I'm surprised it didn't already exist, as with the following:
- Arsames
- BASIC interpreter
- Battle of Catterick (now merged with Battle of Catraeth)
- Battle of Mechain
- Baza Radikaro Oficiala (translated from the Esperanto article)
- Block wargame
- Chit (board wargames)
- Depositors Insurance Fund
- Diego de Arana
- Dome team (now merged with List of current NFL stadiums)
- DOPE (Dartmouth Oversimplified Programming Experiment)
- Firmographics
- FOCAL-69 (now merged with FOCAL)
- Great Temple
- King of Wales
- Hamurabi
- Level I BASIC
- Lex Hieronica
- Maryland 400
- Mead hall
- Piecepack
- Richard Berg
- Richard Merrill
- SKS process
- Wildlife viewing
I also added the "Number of Representatives" section and graph to History of the United States House of Representatives#Number of Representatives.
I'm proud of my contributions to Tiny BASIC, broadening it to be about the family of dialects and implementations, not just Palo Alto Tiny BASIC.