What was one reason william becknell's route to mexico became popular

One reason as to why William Becknell's route to Mexico became famous is that  unlike the immigrant trails of California and Oregon, the route was a commercial trail with a lot of economic benefits that could be gained by trading with Mexican people.

Trade on the trail developed rapidly after William Becknell's three wagons reached Santa Fe in mid-1822. There was considerable demand of basic as well as luxury goods in Sana Fe, the end destination of the trail and this prompted traders to travel there to sell their goods. 

in 1803 the louisiana purchase took place, doubling the size of the country. by 1840 almost 7 million americans had migrated westward in hopes of securing land and being prosperous. the belief that settlers were destined to expand to the west is often referred to as manifest destiny.

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