A Bit Off the Map was created in 1957.
It was created by Jenna Bans.
in a craft project to take a photo and convert to bit map
It is known as an 'insert' and is used to show greater detail of a small section, or to include a bit of the land that would be lost off the map's sheet.
The original map variant was created by Eul, but he did not update the map. Steve "Guinsoo" Feak, would later create a version and update the map for 2 years, then handed the project off to Icefrog who has been working on Dota since 2005.
The Map of Time was created in 2008.
Map of Rensselaerswyck was created in 1632.
Genoese map was created in 1457.
The Ghost Map was created in 2006.
Map Link was created in 199#.
The Ruined Map was created in 1967.
The Wizard's Map was created in 2002.
Caverio map was created in 1505.