There are no recorded events this year. See an overview of when world history happened.
The year 166 BC was a common year starting on a Sunday, just like 263 BC, 252 BC, 246 BC, 235 BC, 224 BC, 218 BC, 207 BC, 196 BC, 190 BC, 179 BC in the century before it and 162 BC, 151 BC, 140 BC, 134 BC, 123 BC, 112 BC, 106 BC, 101 BC, 95 BC, 84 BC, 78 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.