Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Pre-Columbian trans-oceanic contact theories:

"

The Olmec culture existed from roughly 1200 BCE to 400 BCE. The idea that the Olmecs are related to Africans was suggested by José Melgar, who discovered the first colossal head at Hueyapan (now Tres Zapotes) in 1862.[2] More recently, Ivan Van Sertima has presented multiple lines of evidence to suggest an African influence on Mesoamerican culture. His views have been the target of severe scholarly criticism by those in the academic mainstream.[3]