Final answer:
The latest date for pre-Columbian art is 1492, which marks the year before Christopher Columbus's arrival in the Americas.
Step-by-step explanation:
The latest date that could be given to a piece of art designated pre-Columbian is the year 1492. This term applies to the art and artifacts dating to the times before the arrival of Christopher Columbus in the Americas. Since the region known as Mesoamerica was home to several advanced civilizations—including the Zapotec, Olmec, Maya, and Aztec—whose cultures thrived at different times before the Columbian era, it's important to understand that the term 'pre-Columbian' encompasses a wide timespan covering multiple ancient civilizations' achievements in various fields like art, architecture, mathematics, and science.