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
flagAustralia
55%
7%
22%
14%
27
flagGreece
55%
27%
11%
5%
18
flagAustria
53%
0%
26%
20%
15
flagBelarus
50%
18%
18%
9%
22
flagArmenia
50%
10%
20%
20%
10
flagUkraine
44%
9%
30%
14%
154
flagGermany
44%
8%
35%
11%
34
flagRussia
40%
14%
30%
12%
82
flagthe United States
39%
13%
33%
12%
136
flagthe United Kingdom
38%
12%
38%
6%
72
flagKazakhstan
36%
18%
36%
9%
11
flagCanada
33%
22%
38%
5%
18
flagPoland
28%
13%
40%
17%
6630
flagUnknown
28%
28%
35%
7%
14
flagIndia
25%
22%
40%
8%
35