March 12 in San Antonio history…

1887
The first San Antonio & Aransas Pass train leaves San Antonio for Boerne. The trip takes three hours and a ticket costs 95 cents. The train returns to San Antonio the following day.

1910
Much attention is given to the operation of automobiles in the new ordinance.  No greater speed than 15 miles per hour within the city limits is permitted.

2015
Texas Land Commissioner George P. Bush terminates the 110-year custodianship of the Alamo by the Daughters of the Republic of Texas.