Final answer:
Unions historically used collective bargaining, strikes, political lobbying, and legislation to obtain their goals.
Step-by-step explanation:
Unions have historically used various methods to obtain their goals. One method is collective bargaining, where union representatives negotiate with employers on behalf of workers to secure better wages, benefits, and working conditions. Another method is strikes, where workers stop working to put pressure on employers to meet their demands. Additionally, unions have used political lobbying and legislation to advocate for labor rights and enact laws that support workers.
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