# 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^{[1]}.

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.