Industrial revolution

Need for Industrialization• The War of 1812 showed

the U.S. that it could not rely on imports for finished products.

• The U.S. began to develop its own industries.

• The Industrial Revolution was a period of rapid industrial growth in the early 1800’s.

Eli Whitney• Invented the concept

of interchangeable parts.

• Important product parts (like guns) were made exactly the same so individual parts could be changed as needed.

• Made products cheaper

Mass Production

• On an assembly line, a large number of goods are made at one time and all the same.

• This made products cheaper than handmade items.

Importance of Change

• Because they were cheaper to produce, products became affordable to more people.

• The growth of this Factory System was found in the North.

• North became more industrialized than the South.

Agricultural InventionsCotton Gin

• Invented by Eli Whitney.

• Removed the cotton seed from the fiber. More cotton could be processed in a shorter period of time.

King Cotton• The Cotton Gin caused the demand for

cotton to increase a great deal.

• It also increased the demand for farmland and for slaves.

Agricultural Inventions Steel Plow

• Invented by John Deere

• Made planting seeds faster.

Agricultural Inventions Mechanical Reaper

• Invented by Cyrus McCormick• His timesaving invention allowed

farmers to more than double their crop size of wheat and grains.

Effects of the Industrial Revolution

• More and more people moved to cities where there were factory jobs.

• This was found more in the North than in the South which remained agricultural.

• Products mass produced became more affordable.

• As more money was made, machines were improved and new ones invented.