When the machu picchu was inhabited between which years?

Machu Picchu was inhabited primarily during the height of the Inca Empire, around the mid-15th century to the early 16th century, specifically from approximately 1450 until the Spanish conquest in the 1530s. It is believed to have been an important ceremonial site and a royal estate for the Inca emperor Pachacuti. After the Spanish conquest, the site was largely abandoned and remained unknown to the outside world until its rediscovery in the early 20th century.