There are no recorded events this year. See an overview of when world history happened.
The year 3980 BC was a common year starting on a Saturday, just like 4072 BC, 4066 BC, 4055 BC, 4044 BC, 4038 BC, 4027 BC, 4016 BC, 4010 BC, 3999 BC, 3988 BC in the century before it and 3971 BC, 3960 BC, 3954 BC, 3943 BC, 3932 BC, 3926 BC, 3915 BC, 3904 BC, 3898 BC, 3887 BC in the next.
The coloured days highlight
births
,
deaths
,
political
,
scientific
,
artistic
and
other
historical milestones, and recurring events such as anniversaries and
holidays
.
The new
,
waxing
,
full
and
waning
icons indicate the phases of the moon and appear only for dates in the Gregorian calendar, i.e. after 14 October 1582. The Chinese calendar is available only from 1645 to 2644, the first millenium since the last reform. The coloured columns mark the Sundays, the last day of the week per standard ISO-8601.
The normal calendar page for the current /year?2013 contains an introduction to the intriguing history of the year as we know it. The Calendar Converter has more detail. The so called Perpetual Calendar uses a trick from before the age of computers to find the weekday for any Gregorian date. Also see an overview of all historical events in the last six thousand years.