User groups management
User rights log
- 00:00, 1 November 2024 Xaosflux talk contribs changed group membership for Yamamoto Ichiro from administrator to (none) (-sysop, procedural removal dur to inactivity per Special:Permalink/1254642984#Wikipedia:Inactive_administrators/2023#November_2023 at WP:BN)
- 05:37, 25 May 2007 Cecropia talk contribs changed group membership for Yamamoto Ichiro from (none) to administrator (Wikipedia:Requests for adminship/Yamamoto Ichiro)