The designated hitter rule was put in effect in 1973.
1973
The basic rules were the same then as they are now. There is typically a rule or two changed each year...sometimes more, sometimes less. I'm thinking the Designated Hitter was added to the AL rules during this time period, which was a significant new rule, but most new rules or rule changes are minor.
i say 6 months to a year
2006
The Tasmanian devil was designated as Endangered in 2008.
The pass-back rule came into effect in the early 90's in order to eliminate time-wasting by defenders and goal keepers.
The infield fly rule came into existence in 1895. However, the rule stated that it was only in effect when there was one out. This was changed in 1901 to include being in effect when there were no outs as well as when there was one out.
1884
definitely,one year ago,there was a year back rule. 5 back or more in a year meant year back. but now it is said that this rule is no more applicable(may be a rumour)
Yes, it is generally recommended for 12-year-olds to have a designated bedtime to ensure they get enough sleep for their physical and mental well-being.
Christmas was designated in the 4th Century A.D.
New Year?