Keyword | CPC | PCC | Volume | Score |
---|---|---|---|---|
who invented the first electric light bulb | 1.12 | 0.3 | 1177 | 8 |
first electric light bulb invented in 1879 | 1.52 | 0.2 | 6174 | 19 |
first electric light bulb invented | 0.44 | 0.2 | 5990 | 49 |
first electric light bulb inventor | 0.16 | 0.2 | 6776 | 35 |
when was the electric bulb invented | 1.25 | 0.5 | 82 | 43 |