What was anastasio somoza best known for?

Anastasio Somoza, in full Anastasio Somoza García, byname Tacho, (born Feb. 1, 1896, San Marcos, Nicaragua-died Sept. 29, 1956, Ancón, Panama Canal Zone), soldier-politician who was dictator of Nicaragua for 20 years. Preferring the use of patronage and bribery to violence, he established a family dynasty in which he was succeeded by his son Luis Somoza Debayle as president (1956-63) and by another son, Anastasio Somoza Debayle, as head of the Guardia Nacional and then as president (1967-72, 1974-79).