Which day was the last of the 20th century?

31 Dec 1999
31 Dec 2000
31 Dec 2001
31 Dec 1899
There was no year number zero. So, the first century started on 1 Jan 1. Similarly, 21th century started 1 Jan 2001.
Jason Beagley
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Very interesting!
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Answers by country

31 Dec 1999
31 Dec 2000
31 Dec 2001
31 Dec 1899
answers
flagPoland
30%
60%
5%
3%
17481
flagthe Netherlands
40%
60%
0%
0%
10
flagFrance
16%
58%
8%
16%
12
flagGermany
39%
41%
10%
8%
58
flagAustralia
46%
38%
7%
3%
26
flagthe Philippines
44%
38%
5%
11%
18
flagthe United Kingdom
55%
36%
2%
4%
114
flagCanada
45%
36%
18%
0%
11
flagIndia
54%
28%
6%
7%
98
flagthe United States
57%
27%
6%
6%
224
flagUnknown
54%
27%
4%
9%
22