| A | B |
|---|
| Samuel F.B. Morse | perfected the telegraph |
| telegraph | sends information over wires across a great distance |
| Morse Code | combinations of dots and dashes that represent the alphabet and numbers |
| John Deere | designed the steel plow |
| Cyrus McCormick | invented the mechanical reaper |
| Isaac Singer | improved the sewing machine |
| Elias Howe | invented the sewing machine |
| SOS | dot dot dot dash dash dash dot dot dot |
