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
flagAustria
53%
0%
26%
20%
15
flagBelarus
50%
18%
18%
9%
22
flagArmenia
50%
10%
20%
20%
10
flagUkraine
43%
8%
29%
17%
114
flagthe United States
40%
14%
32%
12%
128
flagRussia
40%
14%
30%
12%
75
flagthe United Kingdom
40%
10%
37%
7%
66
flagGermany
40%
9%
37%
12%
32
flagCanada
35%
23%
35%
5%
17
flagPoland
28%
13%
40%
17%
6561
flagUnknown
28%
28%
35%
7%
14
flagIndia
23%
23%
41%
8%
34