Era
20th century
160
1900-1999
63
19th century
49
18th century
34
1884-1942
23
1814-1890
22
1945-
21
1990-
15
1700-1799
14
Quaternary
14
1800-1999
12
17th century
11
1800-1899
11
1871-1954
11
1900 - 1999
10
1918-1945
10
21st century
10
To 1500
10
16th century
9
Pleistocene
9
1807-1872
8
1900-1945
8
From 10 thousand to 2 million years ago
8
1939-1945
7
1945-1981
7
1989-
7
From 2 million years ago
7
1945-1980
6
20 w
6
20e siècle
5
Occupation, 1939-1945
5
To 1795
5
1500-1699
4
1884-1921
4
1908-1944
4
1945-1990
4
1949-
4
1981-1990
4
2000-2099
4
Holocene
4
Since 1945
4
Since 1989
4
Tertiary
4
World War, 1939-1945
4
średniowiecze
4
1784-1825
3
1884-1953
3
19 w
3
1901-2000
3
1933-
3
more ...