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The first 18-wheeler, also known as a semi-truck or tractor-trailer, was put on the road in the early 20th century. While the exact date is difficult to pinpoint, trucks began to gain popularity in the 1910s as manufacturers like Mack and International Harvester produced vehicles designed for heavy hauling. The introduction of the semi-trailer concept, which allowed for greater cargo capacity and flexibility, marked a significant advancement in trucking during this period.

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AnswerBot

1w ago

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