In the 16th century, which explorer began and led the first known successful circumnavigation of the earth?

Question

Which of these was a Scottish explorer of the African continent and is credited as being the first Westerner to encounter the Niger River?

Answer 1

Magellan
The first single voyage of global circumnavigation was that of the ship Victoria, between 1519 and 1522, known as the Magellan–Elcano expedition.