He was blamed for stealing other peoples’ thunder
The credibility of letters highlighting Vespucci's achievements is seriously questioned. Some historians believe the letters were not written by the explorer, which is an intriguing revelation regarding Amerigo Vespucci. His reputation has suffered as a result of this, with some researchers assuming he stole credit for several of his findings, including claiming credit for the Americas from Christopher Columbus.
Regardless, he was a major influence during the Age of Discovery, and his discovery that the Americas were not part of Asia was crucial in establishing the world as we know it.