B.o.B has never hid his beliefs about the Earth being flat, but now, the Atlanta rapper also appears to be questioning if slave ships ever existed.

On Wednesday (Nov. 1), the rapper uploaded a video wondering if the slave trade was true. "They say slavery lasted 400 yrs," he wrote in the caption. "America is only 250 years old... You ever seen a slave ship? They can find a billion year old dinosaur bone but can't find any slave ships. #AseerTheDukeofTiers #apparently #SlaveryIsNotInMyDNA #WeBeenHere."

B.o.B's caption accompanied a video of a man discussing how maps are wrong and when Europeans came into power, they switched names and places to "disorientate us." The video then switches to another person looking at a map with areas such as Morocco, Japan and Jerusalem next to Illinois. The map in question is actually a map of the ground plans for the Louisiana Purchase Exposition, also known as the 1904 St. Louis World's Fair.

In September, the rapper created a GoFundMe to help raise money to find evidence that the Earth is round. The campaign, which is called Show BoB the Curve, hopes to "purchase and launch multiple satellites into space." At the time of writing, the campaign has raised $6,392, just $993,608 short of its $1 million goal.

B.o.B. had previously told his fans, "Don't believe what I say, research what I say." And in a separate tweet, he questioned, "The cities in the background are approx. 16miles apart... where is the curve ? please explain this."

Check out the rapper's Instagram post below.

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