Tristan da Cunha is the most remote inhabited archipelago in the world. Who discovered it?

On Tenerife (Canary Is­land­s). Mount Teide is the highest peak of Tenerefe in the Canary Islands and at the same time of Spain. Teide is 3,718 meter (12,198 ft) high stra­tovul­cano. It's also the highest peak of all Atlantic islands. Measured from the ocean floor it reaches about 7,500 meters (24,600 ft).

Puerto Rico Trench is deep at 9219 m below sea level (At­lantic), Tonga Trench is deep at 10882 m below sea level, Romanche Furrow is deep at 7761 m below sea level, New Britain Trench is deep at 9140 m below sea level.

For the fastest liner. The term “Blue Riband of the At­lantic” did not come into use until the 1890's, and the history of the tran­s-At­lantic com­pe­ti­tion, which was compiled ret­ro­spec­tive­ly, was regarded as starting with the cross­ings by the steamships Sirius and Great Western in 1838.Sir­ius in 1838 needed 18 days 14 hours. 22 min. The last SS United States did this in 3 days 10 hours. 40 minutes

Alexan­der the Great. Aris­to­tle was invited by Philip II of Macedon to become the tutor to his son Alexan­der in 343 BC. Aris­to­tle was ap­point­ed as the head of the royal academy of Macedon and en­cour­aged Alexan­der toward eastern con­quest.