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
flagFrance
83%
16%
0%
0%
12
flagRepublic of Ireland
60%
10%
20%
10%
10
flagGreece
55%
27%
11%
5%
18
flagAustralia
53%
7%
23%
15%
26
flagBelarus
50%
22%
16%
11%
18
flagAustria
50%
0%
28%
21%
14
flagUkraine
42%
7%
31%
18%
88
flagRussia
42%
14%
30%
10%
56
flagthe United Kingdom
41%
11%
37%
8%
62
flagGermany
41%
10%
37%
10%
29
flagthe United States
39%
13%
33%
13%
123
flagCanada
37%
25%
31%
6%
16
flagPoland
28%
13%
40%
17%
6458
flagUnknown
28%
28%
35%
7%
14
flagIndia
27%
20%
44%
6%
29