system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:why are most European flags three stripes of color?
gpt
The tricolor pattern was born as a symbol of liberty and revolution in Europe, in the 16th century, and then gained traction in the time of the French revolution and only increased in popularity to 1848, the "Spring of Nations". 

The tricolor pattern was seen as the herald of a new age, an age where the feudal lords would finally be removed, and power was instead given to the common people. Of course, such transitions were often bloody.