Source: NPR - Link
In 1935, Sen. Robert F. Wagner of New York began drafting what would become the National Labor Relations Act.
It’s known as “the Magna Carta of labor,” Harold said.
It grants the right for workers to organize. The NLRA also establishes the National Labor Relations Board with enforcement powers to protect the right to organize and certified employee unions. The law bans unfair labor practice such as blacklisting, strike-breaking and discriminatory firings.
This is just one event mentioned of the article.