Answer: Labour party
The British Labour Party grew out of the trade union movement of the late 19th century and surpassed the Liberal Party as the main opposition to the Conservatives in the early 1920s
Explanation:
Just say, "No more slavery." Boom. Problem solved.
It had a very positive impact because the 1920's was when many new technologies were introduced, one example being the the assembly line, which made many industries more productive and profitable.
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Motivations for colonization were to extract gold and silver from the Americans, to stimulate the Spanish economy and make Spain a more powerful country.Spain was also aiming to convert all native Americans to Christianity.
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Confederation, I guess. European Union for example