OE stands for Open Edition Print
The Alamo, originally known as Mission San Antonio de Valero, is a former Roman Catholic mission and fortress compound and was the site of the Battle of the Alamo in 1836. It is now a museum in the Alamo Plaza District of Downtown San Antonio, Texas. It was built by Spanish Franciscan priest Antonio de Olivares and Payaya Indians, and along with the Presidio San Antonio de Bexar and the Acequia Madre de Valero is the origin of the present city of San Antonio.