The Río Piedras massacre occurred on October 24, 1935, at the University of Puerto Rico in Río Piedras. Puerto Rico Police officers confronted and opened fire on supporters of the Puerto Rican Nationalist Party. Four Nationalist Party members were killed, and one police officer was wounded during the shooting.

Clemente Soto Vélez was a Puerto Rican nationalist, poet, journalist and activist who mentored many generations of artists in Puerto Rico and New York City. Upon his death in 1993, he left a rich legacy that contributed to the cultural, social and economic life of Puerto Ricans in New York and Latinos everywhere.