Following a bloodless coup in 1974 called the  Carnation Revolution,  Salazar's successor, Dr. Marcelo Caetano, was overthrown and free elections were held.
The coup was called Carnation Revolution because it involved flowers.
mnli hypothesis: The coup was called Carnation Revolution because it involved flowers. premise: Following a bloodless coup in 1974 called the  Carnation Revolution,  Salazar's successor, Dr. Marcelo Caetano, was overthrown and free elections were held.