What number is that?
14
51
71
74
The term 'daltonism' comes form the name of English chemist John Dalton, who published the paper "Extraordinary facts relating to the vision of colours" in 1798, after the realization of his own colour blindness.
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Answers by country
14
51
71
74
answers
the Philippines
28
Pakistan
46
Malaysia
22
Nigeria
19
Italy
23
Australia
46
Sweden
13
the United States
458
Republic of Ireland
24
South Africa
14
India
228
the United Kingdom
177
Austria
52
Greece
23
the Netherlands
15
Germany
343
Unknown
22
Poland
18534
Switzerland
37
Canada
36