When was the first telegraph line built searching

Top keyword related from Search Engine of when was the first telegraph line built

Keyword	CPC	PCC	Volume	Length string	Score
when was the first telegraph line built	0.74	0.6	1330	39	76
where was the first telegraph line	1.37	0.7	2232	34	79
when was the first telegraph constructed	2	0.4	7594	40	34
when was the first telegraph made	1.85	0.8	1953	33	23
when was the first telegraph	0.36	0.3	2403	28	25
when was the first telegraph invented	0.98	0.5	2304	37	43
what year was the first telegraph invented	1.74	0.5	2124	42	40
when was the telegraph created	0.77	0.1	2146	30	72
who created the telegraph line	1.85	0.4	9631	30	26
who invented the telegraph line	0.48	1	611	31	44
the history of telegraph lines	1.75	0.2	3268	30	5
the history of building telegraph lines	0.81	0.1	8475	39	76
who made the first telegraph	1.73	0.5	720	28	74

Top URL related to when was the first telegraph line built