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
52%
19%
19%
9%
21
flagAustria
50%
0%
28%
21%
14
flagArmenia
50%
10%
20%
20%
10
flagUkraine
42%
8%
31%
17%
98
flagRussia
41%
13%
29%
11%
67
flagthe United States
40%
14%
32%
12%
127
flagthe United Kingdom
40%
10%
37%
7%
64
flagGermany
40%
9%
37%
12%
32
flagCanada
35%
23%
35%
5%
17
flagPoland
28%
13%
40%
17%
6517
flagUnknown
28%
28%
35%
7%
14
flagIndia
25%
21%
43%
9%
32