A: The main cause of rapid population growth is when there are more births than there are deaths, which is referred to as a natural increase. Other causes of ... Full Answer >
Spanish flu (1918-1919). The influenza pandemic of 1918-1919 killed more people than the World War I, at somewhere between 20 and 40 million people. It has been cited as the most devastating epidemic in recorded world history. Known as Spanish Flu or La Grippe the influenza of 1918-1920 was a global disaster.
After the whole thing was over people said that about 5,000 people died from yellow fever. Yellow fever in Philadelphia. It is now known that it was spread by mosquitoes. Hundreds of people were dying every month. It all started out slow and day by day more and more people began to die.