There is another part of the Muslim world that had contact with the Americas before Columbus. In West Africa in the 1300s, a powerful and incredibly wealthy empire called Mali existed. The most famous leader of this empire was Mansa (king) Musa. The most memorable event of his reign was his epic hajj journey in 1324.

The caravan of over 60,000 people made an impression everywhere they went, including Egypt, where Mansa Musa told the story of how he came to power. His brother, Abu Bakr was the Mansa before he was.

During his reign, Abu Bakr sent a fleet of 400 ships to explore the Atlantic Ocean. Only  one ship returned, which reported that they found a land across the ocean. Mansa Abu Bakr then outfitted a fleet of 2000 ships, which he sailed with personally, that sailed west into the ocean. They were never heard from again.

While there is no record in Mali of the result of that voyage, there is evidence of their arrival in the Americas. There are numerous archaeological sites in North and South America that attest to that Malian presence.

Early Spanish explorers and pirates recorded abandoned cities in Brazil that had inscriptions identical to the language of the Mandinka (the people of Mali).

More inscriptions in the Mandinka language were found in the United States as well. Near the Mississippi River, many inscriptions exist that recorded their exploration of the Americas. In Arizona, an inscription was found that reads “The elephants are sick and angry.

At present there are many sick elephants”. This inscription also includes a rough sketch of an elephant. Elephants are not native to the Americas. They were brought by the Mandinka to the Americas, and the inscriptions are proof of Mansa Abu Bakr’s successful journey over 100 years before Columbus.

http://www.onislam.net/english/culture-and-entertainment/history/477219-muslims-crossed-the-atlantic-before-columbus.html