What was used as a unit of mass in the classical times?

carob seed
a drop of lead
handful of sand
swallow's egg
Carat, a unit of mass equal to 200 mg, is derived from a carob seed (Greek kerátion). People commonly believed that the seeds have unusually low variability in mass. Modern research denied this claim.
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Answers by country

carob seed
a drop of lead
handful of sand
swallow's egg
answers
flagRepublic of Ireland
60%
10%
20%
10%
10
flagAustralia
56%
8%
20%
16%
25
flagGreece
55%
27%
11%
5%
18
flagAustria
50%
0%
28%
21%
14
flagRussia
44%
13%
32%
9%
43
flagUkraine
41%
9%
32%
16%
77
flagGermany
41%
10%
37%
10%
29
flagBelarus
41%
25%
25%
8%
12
flagthe United Kingdom
40%
11%
38%
6%
59
flagthe United States
38%
13%
34%
12%
118
flagCanada
35%
28%
28%
7%
14
flagIndia
30%
19%
42%
7%
26
flagUnknown
28%
28%
35%
7%
14
flagPoland
27%
13%
41%
17%
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