Why do we associate the Roman Empire with the color red?

by Why-Chromosome

In many modern media portrayals Rome is often represented with a red color on maps, in costumes, etc. Where did this trend begin? Would Romans themselves have made this association?

caesar15

Instead of answering this, I am going to redirect you to a similiar post here: https://www.reddit.com/r/AskHistorians/comments/321ht0/throughout_popular_culture_roman_soldiers_are/