| communication before the telegraph | 0.01 | 0.5 | 506 | 34 | 13 |
| communication before the telephone | 0.94 | 0.8 | 2986 | 34 | 45 |
| how did they communicate before the telegraph | 1.96 | 0.5 | 7615 | 45 | 41 |
| history of telegraph in communication | 0.08 | 0.8 | 7690 | 37 | 36 |
| how did the telegraph change communication | 0.61 | 0.1 | 8547 | 42 | 80 |
| how did the telegraph affect communication | 0.37 | 1 | 4138 | 42 | 71 |
| how did the telegraph impact communication | 0.01 | 0.3 | 1112 | 42 | 62 |
| when was telegraph communication invented | 1.74 | 0.2 | 6517 | 41 | 64 |
| what is telegraph communication | 0.71 | 0.7 | 7259 | 31 | 65 |
| who invented telegraph communication | 0.61 | 0.5 | 1311 | 36 | 68 |
| how was communication before the telephone | 1.2 | 0.5 | 5399 | 42 | 36 |
| communication importance of telegraphs | 0.49 | 1 | 6966 | 38 | 15 |
| what was used before the telegraph | 1.41 | 0.9 | 2055 | 34 | 3 |
| the first telegraph message | 1.22 | 0.9 | 6507 | 27 | 9 |
| what could the early telegraph accomplish | 1.83 | 0.9 | 7051 | 41 | 3 |
| did the telegraph lead to the telephone | 1.07 | 0.4 | 1359 | 39 | 52 |
| telegraph communication civil war | 0.65 | 0.5 | 3544 | 33 | 77 |
| why was the telegraph needed | 1.33 | 0.1 | 7891 | 28 | 76 |
| how did the first telegraph work | 1.98 | 0.5 | 4544 | 32 | 1 |
| how was communication in the past | 1.58 | 0.8 | 2895 | 33 | 89 |
