# Definition:Topology (Mathematical Branch)

## Definition

Topology is a geometry of transformations in which the only invariant is continuity.

## Also known as

The original name of this subject was geometria situs, or analysis situs (that is: geometry / analysis of position).

## Also see

• Results about topology can be found here.

## Historical Note

The word topology was coined by Johann Benedict Listing in a letter of $1836$.

The word was first published in the title of Listing's $1847$ book Vorstudien zur Topologie, but the word never caught on until the $1920$s.