Timeline for all types of items produced by
Entropy

Year	Items
1983	1
1984	2
1986	3
1987	3
1988	1
1989	1
1991	2
1992	7
1993	29
1994	16
1997	1

66 items with a valid date were considered for this timeline (83.54% of the total)
13 items with an invalid date.

Help us in our quest to find exact dates for:

198?: 1 item.
199?: 7 items.
19??: 5 items.