A. Eli Whitney--III. led to an increased demand for labor on cotton plantations. B. James Watt--I. reduced the amount of coal needed to pump water out of mines. C. Jethro Tull--II. reduced the number of workers needed to plant crops.
Eli Whitney invented the cotton gin. This machine could quickly pull seeds out of the cotton plant making the processing time for cotton quicker and then cheaper. This increased the demand for cotton and then planters wanted more labor to pick more cotton.
James Watt invented the steam engine which would allow for transportation and engine creation. Engines were used to move machines and creating pumping action in the case of mines.
Jethro Tull invented the seed drill. This agricultural invention allowed farmers to quickly create holes for seed and made planting quicker. Since it became quicker and easier to plant, less workers were needed to plant a field.
A primary source is a person (or a record produced by a person) who was actually there, as a witness or a participant of the event in question. A secondary source is someone who obtained information from a primary source and who then wrote or spoke about it.
