The good, old "The Truth That Leads To Eternal Life" referenced 1975. Anyone remember that book and the referrals to another book "Famine 1975?" Good times!
Then 1975 was replaced with 1984-1994. The math was quite simple. A generation lives 70-80 years, 1914 was the year something supposedly happened, 1914 + 70 = 1984 and 1914 + 80 = 1994. Well nothing happened so frozen said, "This is all BS" and lived happily ever after!