Three years later, Daimler again built an improved four-stroke engine with mushroom shaped valves and two V-slant cylinders Last in 1890, Wilhelm Maybach built the first four-stroke, four-cylinder, engine. ... In 1903, Henry Ford started the Ford Motor Company and improved Detroit's assembly line by using conveyor belts. ...

• Word Count: 939
• Approx Pages: 4
• Has Bibliography

The decade of the 1920s included many changes, inventions, and developments which transformed a traditional American society into a modern American society- a society in which the conflict of traditional v. modern had lasting effects on American society. ... Henry Ford perfected the assembly-line production to where this famous Rouge River Plant was producing a finished automobile every ten seconds. ...

• Word Count: 1001
• Approx Pages: 4