when was crossword invented

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when was crossword invented	0.49	0.8	2078	54	27
when	0.24	0.1	7664	47	4
was	0.97	0.9	8574	52	3
crossword	1.95	0.3	4094	90	9
invented	1.02	0.8	5406	51	8

Keyword	CPC	PCC	Volume	Score
when was crossword invented	0.73	0.7	3193	9
when was the crossword puzzle invented	0.82	0.8	1106	28
when was the first crossword puzzle invented	0.49	1	5168	61
invented word crossword clue	0.06	0.1	6353	19
who invented crossword puzzle	0.44	0.9	1113	54
how crossword history began	0.05	0.7	5818	12
when was the first crossword puzzle created	1.01	0.4	4808	99
was introduced to crossword	0.72	1	3252	77
invented as a phrase crossword	0.67	1	3715	91
invented crossword clue answer	0.23	0.9	289	4
history of crossword solver	0.97	0.9	3115	81
origin of a word crossword	1.12	0.4	9198	59
inventor of the crossword puzzle	1.34	0.2	9626	56
originally known as crossword	0.75	0.1	5931	15
invention of a new word crossword	1.39	0.2	2909	26
who created crossword puzzle	1.21	1	5017	53
creator of the first crossword	0.6	0.9	6479	76