Extract the most informative sentece from this text:

Context: Rómulo Ernesto Betancourt Bello, known as "The Father of Venezuelan Democracy", was the president of Venezuela, serving from 1945 to 1948 and again from 1959 to 1964, as well as leader of Acción Democrática, Venezuela's dominant political party in the 20th century.

Betancourt, one of Venezuela's most important political figures, led a tumultuous career in Latin American politics. Periods of exile brought Betancourt in contact with various Latin American countries as well as the United States, securing his legacy as one of the most prominent international leaders to emerge from 20th-century Latin America. Scholars credit Betancourt as the Founding Father of modern democratic Venezuela.

Answer: Rómulo Ernesto Betancourt Bello was the president of Venezuela from 1945 to 1948 and again from 1959 to 1964.