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The concept of the semi trailer dates back to the early 20th century. Initially, freight was transported primarily via railroads and horse-drawn wagons. However, as highways developed and the trucking industry grew, the need for more efficient cargo transport became evident. The semi trailer, which attaches to a truck tractor, allowed for greater flexibility and capacity without the need for a dedicated vehicle for every load. This innovation marked a significant turning point in freight transportation, transforming how goods were moved and fostering economic growth.


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