Which country started using 7 days in week?

Ancient Greece
Ancient Egypt
Ancient India
Babylon
The sev­en-­day week has deep his­tor­i­cal origins in the as­trol­o­gy of Ancient Near East, being ap­prox­i­mate­ly a quarter of a lu­na­tion. It was (in­de­pen­dent­ly) adopted by the Persian Empire, in Judaism and in Hel­lenis­tic as­trol­o­gy, and (via Greek trans­mis­sion) in Gupta India and Tang China.

Answers distribution

Ancient Greece
Ancient Egypt
Ancient India
Babylon
answers
flagGermany
9%
18%
5%
66%
74
flagCanada
16%
16%
0%
66%
12
flagthe United Kingdom
14%
11%
7%
65%
139
flagPoland
17%
15%
8%
57%
3602
flagSpain
21%
7%
14%
57%
14
flagUnknown
20%
14%
10%
54%
229
flagRepublic of Ireland
20%
20%
6%
53%
15
flagItaly
28%
14%
7%
50%
14
flagthe United States
32%
10%
8%
48%
56
flagthe Netherlands
28%
21%
14%
35%
14
flagNorway
18%
36%
18%
27%
11
flagSweden
25%
41%
8%
25%
12

Gender

men53%
women51%
Ancient Greece
18%
21%
Ancient Egypt
15%
15%
Ancient India
11%
11%
Babylon
53%
51%

Language versions

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answers
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Which country started using 7 days in week?
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41%

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Author: $#O!@B
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