Antigua Escuela Teresa Préstamo, an elementary school was located in the Mavito sector of Espinosa barrio[10] until its closure in 2018.

In 1899, the United States Department of War conducted a census of Puerto Rico finding that the population of Espinosa barrio was 787.

The sudden wealth of a few residents attracted attention and prompted an investigation by FBI and local police.

[19] By May 1990, the FBI had traced $11 million and seized and confiscated property and goods purchased with the money, which was said to belong to drug lord Ramon Torres Gonzalez.

FBI stated the money was located on his farm in the Tiburón sector of Espinosa in Dorado and filed charges shortly after.