why didn t Claudette Colvin become famous as Rosa Parks? She was involved in the same bus situastion as Parks?

For a long time, Montgomery's black leaders did not publicize Colvin's pioneering effort because she was a teenager who was pregnant by a married man; words like "feisty", "mouthy", and "emotional" were used to describe Colvin while her counterpart Parks was seen as calm, well-mannered, and studious. Given the social norms of the time and her youth, the NAACP leaders worried about using her to represent their boycott

The Montgomery branch of the ACLU believed that the Colvin case was unsuitable as a test case since Colvin was an unwed mother and had resisted arrest. - Thus they chose Parks (a worker in the ACLU local office) to instigate an incident believing her to be more sympathetic.

Rosa Parks had a better Publicity Agent.

Parks worked for activists so she had more confidence and connections.