Cleaned up name, place, wiki tags on Sonoma Co.

Distinguish Humboldt Co. in Utah Territory vs. California

Deleted Marin Co. place point in favor of boundary relations

Removed stray segments of Marin Co. boundary relation

Added bike path

Replaced never-built Willow Fwy., La Honda Fwy. w/ actual history of Mayfield–Searsville Rd., Willow Rd., Sand Hill Rd.; added bridge areas

Started mapping I-280/SR 87 interchange

Added I-280, I-680 route relations

Split I-280 route relation into directional relations

Added Sinclair Fwy., bridges along it, Alum Rock busway

More specific source

Underpass/undercrossing in a bridge name means the namesake passes under the bridge; it doesn’t mean the namesake is the underpass/undercrossing and the bridge is the overpass/overcrossing

Corrected dates of S.P. 4th Street Line, San José–Gilroy–Hollister line

St. Agnes, Church of the Resurrection, Xavier Jesuit Academy

Diocese of San José in California

Fixed gaps in boundary relations

Archdiocese of Cincinnati boundaries

This was neither the Marquette Co. of Michigan nor the Highland Co. of Ohio

Repaired Michigan township boundary relations commandeered for Indiana highways by changeset 2744824

Added missing dates