The author, Howard Zinn, criticized Samuel Eliot Morison's history of Columbus and the Europeans as being biased and one-sided. He argued that Morison presented a romanticized and heroic image of Columbus and the European explorers, while downplaying the violence, exploitation, and devastation they brought upon the Indigenous peoples they encountered. Zinn accused Morison of perpetuating a Eurocentric perspective and ignoring the perspectives and experiences of the Indigenous peoples. He argued that Morison's history was part of a larger narrative that justified and glorified European colonization and imperialism.