Terminus

In Roman mythology, Terminus was the god of boundaries. The stones used to mark borders were sacred to him.

On February 23, the Terminalia was held in his honor. The stone boundary-markers were drenched in sacrificial blood and place on flowers to renew its protective powers. The stone was later thought of as a god.

Jupiter was worshipped as Jupiter Terminus or Jupiter Terminalus. He fit into the same role as the independent god Terminus.

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Terminus was also the original name of the city of Atlanta, named not for the god but for being the terminus (end) of many of the South's railroad lines. The name was soon changed to Marthasville, and Atlanta soon after that.

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Terminus is the name of the home planet of the Foundation in Isaac Asimov's Foundation series.