Atlas is the name of the Titan in Greek myth who was condemned to hold up the sky; the name is of uncertain meaning and is usually explained as "bearer" or "enduring", from the Greek verb tlao. A book of maps is called an atlas because early collections showed the Titan carrying the world on the title page. The name was practically unused in the United States at number 7495 in 2000; it entered the top 1000 in 2013, rose from number 487 in 2015 and cracked the top 100 for the first time in 2025 at number 75.