How did the Women's Trade Union League protect the rights of women factory
workers?

Women's Trade Union League (WTUL), American organization, the first national association dedicated to organizing women workers. Founded in 1903, the WTUL proved remarkably successful in uniting women from all classes to work toward better, fairer working conditions.

Explanation:

Eleanor Roosevelt

WOMEN'S TRADE UNION LEAGUE

Eleanor Roosevelt learned about the league in 1919 while acting as a french translator at the International Congress of Working Women in Washington. She joined the WTUL in 1922, twenty years after its first official meeting.