User blog comment:GunsnadGlory/Common Misconceptions of History Part 2: Great Empires/@comment-24285234-20140318004441/@comment-7700555-20140524162320

You might want to look up things before you say them, since if you had taken a look at the Wikipedia page for "Space-Time Continuum" you'd see in the opening paragraphs references to time as a dimension.

Firstly, spacetime is simply a type of mathematical model.

Secondly, the spacetime of our own universe consists of three special dimensions and one temporal dimension.