What led to the Spanish civil war in 1936? why was it significant?

The Spanish civil war was caused by a multitude of causes, the primary one being the failure of Spanish democracy. Once a great power of Europe, it had been drained of its colonies by Napoleon's invasion and the American-Spanish war. Spain was very divided, and the poor turned to Communism, Anarchism, and Socialism, which called for the re-distribution of things such as land and money. The significance of the war came from the fact that other nations got involved, such as Germany, Portugal, and the USSR. To many of the elite, Spain was on the verge of a communist revolution.

It was started by rebelling against the Second Republic