The tropical regions of Australia, in the north of the country, including the equatorial and sub-tropical zones have high temperatures and high humidity and distinct wet and dry seasons. In the Australian tropics the wet season, called the monsoon season, lasts about six months, between November and March. It is hotter than the dry season, with temperatures between 30 and 50 degrees Celsius. This is because of the high humidity during the wet, which is caused by large amounts of water in the air.
Four U.S. presidents have been assassinated: Abraham Lincoln, James Garfield, William McKinley, John Kennedy. At least four others have been the targets of assassins, but were not killed: Andrew Jackson, Franklin Roosevelt, Gerald Ford, Ronald Reagan.
Adopted in the 1790s by George Washington, the first President of the United States, as his official manner of address as head of state, Mister President has subsequently been used by other governments to refer to their heads of state.