1) The shortest war in history lasted only 38 to 45 minutes between Britain and Zanzibar in 1896.

2) The word "oxygen" contains two vowels: O and E.

3) The ancient Egyptian civilization, with its impressive pyramids, pharaohs, and hieroglyphics, flourished along the Nile River for thousands of years.

4) Antarctica is the coldest, driest, and windiest continent on Earth. It is also the highest, with an average elevation of about 7,545 feet (2,300 meters).