[CQ-Contest] Historical contest calendars

[Robert Chudek - K0RC]

Has anyone compiled a complete historical contest calendar?

I am looking for dates/times of events that took place in the past. For example, my old logbooks indicate numerous contests in 1970. However, I failed to indicate the specific contest names.

It appears some contests have shifted dates during the past 50 years. And other contests have disappeared altogether (Novice Roundup).

Ideas?

73 de Bob - KØRC in MN