The Fuerzas Armadas de Liberación Nacional (or FALN), in English: Armed Forces of National Liberation, claimed to have planted the bomb at Fraunces Tavern in Manhattan’s Financial District on January 24th, 1975.
An attaché case packed with explosives, placed in the tavern’s entrance hallway, detonated during a busy Friday lunchtime, killing four people and injuring more than 50 others. The historic Fraunces Tavern building was extensively damaged by the blast.
In a note left in a nearby telephone booth at Bridge and Water Streets, purportedly from FALN, the separatist Puerto Rican paramilitary organization took responsibility for the attack. Nobody was ever directly charged for the bombing, but several FALN members were later arrested and variously convicted for seditious conspiracy, conspiracy to commit robbery, conspiracy to bomb-making, and weapons violations.