The Opening and Closing of the Santa Fe Trail 1821-1880, PART 1 Oldest House in Santa Fe, New Mexico The Mexican Revolution ended in 1821 and brought about many changes in foreign policy. Up to then Spain didn’t allow her colonies to trade with the U.S. American traders venturing into Santa Fe were thrown in jail, sometimes for years. Both sides needed something the other possessed. Santa Fe located far from Mexico City, more of an afterthought to Spanish authorities, desperately need manufactured goods while the Americans needed hard currency. Mexico had an abundance of silver. When Mexican soldiers encountered Indian trader William Becknell near the Arkansas River in November 1821 they invited him to bring his trade goods to Santa Fe where he would find a welcome market. The Becknell Party entered Santa Fe on November 16