The city was founded in 1755 by the Spanish captain Tomás Sánchez, in the province of Nuevo Santander. Jose de Escandon was the first Count of Sierra Gorda and one of the richest and most powerful men in the region.
Just behind the mall in Laredo, Texas, is a place dedicated to the PO Box service. The passing of time has transformed the way that we contact each other, and now you no longer need to rent your own box to receive letters, so today the service is used for receiving mail-order online packages which require a US address. Residents of the north-eastern states of Mexico order things online to reach this address, and cross the border to collect them.