Important dates from exploration and colonization By Aaronrogers21 1519 Pineda map the Gulf of Mexico 1537 Cabeza de vaca reports on exploration in texas 1682 Establish first mission at corpus christi de la ysleta 1685 La salle settels fort st. Louis 1687 Father hidalgo caused the Spanish t be suspicious of French colonization 1690 Establish the mission San Francisco de lostejas in east Texas 1st mission in east texas 1718 San antio founded 1719 East Texas missions are moved to San antio 1720 Mission San Jose is complete San antio and other mission are built