Here are some articles I started (or rewrote) in order of newest to oldest:

• Tadaaki Kuwayama
• List of Indices of Freedom
• Pinghua (linguistics)
• Xiang (linguistics)
• Mount Terror (Antarctica)
• Nitrobenzol
• Alternative names for the British
• Acetate
• Prisoner of War Medal
• Distinguished Flying Cross (U.S.)
• Vinyon
• M3 Grease Gun
• Benjamin Stoddert
• John Machin
• United States Federal Executive Departments
• United States Secretary of the Army
• Aramid
• PBI
• Sulfar
• Synthetic fiber
• OVRA

Some older Wikipedia writings and projects:

• Redirect project
• Deletion is a tool
• How to game Wikipedia