Final answer:
The Shirtwaist Kings primarily dominated the garment manufacturing industry, showcasing labor struggles and the impact of the Triangle Shirtwaist Factory Fire.
Explanation:
Garment manufacturing was the industry primarily dominated by the 'Shirtwaist Kings,' as exemplified by the Triangle Shirtwaist Factory and the International Ladies Garment Workers Union (ILGWU).
In 1909, workers from the Triangle Shirtwaist Factory went on strike to protest poor working conditions and demand better treatment, leading to significant movements in the garment sector.
The Triangle Shirtwaist Factory Fire in 1911, where 146 workers died due to locked fire escapes, fueled advancements in both the women's movement and worker safety standards.
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