| A | B |
|---|
| communication | sharing information with other people |
| transportation | a way of moving people and goods |
| telegraph | electrical signals to send messages over wires |
| Overland California Mail Act | In 1857, U.S. passed this law to set aside money to create a faster mail service to and from California |
| Samuel F. B. Morse | sent first telegraph |
| transcontinental railroad | a railroad that crosses a continent |
| engineer | designs and builds things |
| inventor | puts money into a business in the hope of earning more money in the future |
| strike | when workers stop doing their jobs to protest working conditions or to get higher pay |
| Big Four | four wealthy men who invested in the transcontinental railroad |
| Pacific Railway Act | In 1862, this law passed which set aside money for a transcontinental railroad |
