Well, khandu is almost correct in saying that the eighties lasted from the end of the seventies until the beginning of the nineties. Most of the eighties did occur at some time during that period, but 1986 did, in fact, occur between 1974 and 1975. I distinctly remember because I took dropped some really good windowpane on New Years Eve of 1974 and before New Years Day of 1975 was over, the entire year of 1986 had flown by. 1986 may have tried to happen again in its more predictable location, between 1985 and 1987, but I was too drunk to notice.