1) The word "elephant" contains three vowels: E, A, and E.

2) The Dead Sea, bordered by Jordan to the east and Israel and Palestine to the west, is a hypersaline lake known for its high salt concentration. It is the lowest point on Earth's land surface and provides unique buoyancy, attracting visitors who enjoy floating in its waters.

3) The concept of compound interest can be attributed to the ancient Babylonians, who used it in their banking practices.

4) The Berlin Conference in 1884-1885 divided Africa among European powers and set the stage for the colonization of the continent.