Timeline for all types of items produced by
Unknown

Year	Items
-350	1
1108	1
1449	1
1648	1
1865	1
1881	1
1890	1
1892	1
1893	1
1895	5
1897	13
1898	4
1900	9
1901	1
1902	2
1903	1
1905	9
1906	1
1907	1
1908	1
1909	5
1910	14
1911	7
1912	7
1920	6
1922	1
1925	4
1928	4
1930	4
1931	1
1932	5
1933	4
1934	2
1935	8
1936	2
1937	2
1938	1
1940	2
1941	1
1943	2
1944	2
1945	1
1946	1
1947	1
1948	2
1949	3
1950	1
1951	1
1952	2
1953	1
1954	3
1957	2
1959	2
1962	1
1963	2
1965	1
1966	1
1968	3
1969	1
1972	3
1973	7
1974	8
1975	31
1976	12
1977	34
1978	18
1979	23
1980	24
1981	38
1982	51
1983	64
1984	101
1985	184
1986	240
1987	222
1988	131
1989	125
1990	116
1991	104
1992	85
1993	79
1994	61
1995	74
1996	69
1997	77
1998	61
1999	52
2000	35
2001	44
2002	62
2003	31
2004	33
2005	18
2006	30
2007	18
2008	18
2009	18
2010	25
2011	10
2012	10
2013	15
2014	18
2015	7
2016	14
2017	5
2018	1
2019	5
2021	1
2022	1

2682 items with a valid date were considered for this timeline (30.13% of the total)
6220 items with an invalid date.

Help us in our quest to find exact dates for:

189?: 58 items.
18??: 2 items.
191?: 1 item.
192?: 6 items.
193?: 13 items.
194?: 6 items.
195?: 10 items.
196?: 8 items.
197?: 16 items.
198?: 1502 items.
199?: 2815 items.
19??: 1378 items.
200?: 278 items.
201?: 40 items.
202?: 3 items.
20??: 1 item.
????: 83 items.