He started the expedition to Yucatán in 1517 with 110 settlers and ended April 1518. The past year, he discovered and explored new lands. The second event which was the Conquest of Mexico was a campaign that started in 1519 and ended victoriously in August 13 1521. Because of these two important events that occurred during his time period he became the governor of Antigua Guatemala. (
En.m.wikipedia.org.com)