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Across 2. Built the reaper. 6. A fuel made from petroleum. 8. An economic system which people are able to start or run a business. 12. Patented the telephone in 1876. 15. Oil, gathered on ponds in western Pennslvania and other places.

Down 1. Number of differenct rail lines that crossed the entire continent of North America. 3. Built railroads. 4. Money needed to set up or improve a business. 5. The ideas and skills workers bring to their jobs. 7. By the 1890s he became one of the wealthiest person in the world. 9. Built an oil refinery in 1863 at the age of 23. 10. Invented an electrical vote recorder in 1869. 11. A person who sets up and runs a business. 13. Thomas Edison obtained more than 1,000 ____________. 14. ___________ Mills.