Throughout history, comics have reflected the sociopolitical attitudes of their writers and readers. In America, early comics consisted primarily of short, humorous comic strips printed in newspapers. In the 1930s, comics evolved into longer, action-oriented storylines and transitioned into the comic medium format. It began addressing important contemporary political issues. For example, some have suggested that the Wonder Woman character and title evolved as a vehicle to communicate pro-American attitudes during World War II. X-Men creator, Stan Lee has frequently cited the Civil Rights Movement as the inspiration for his mutant team of superheroes, and has translated many of the tensions of majority-minority race politics into the X-Men title.