ca. 2011
Circa 140 BC
vers.
This is generally given as "circa 1900AD" or "sometime between 1890 and 1910AD". Circa is Latin for about/around.
The word circa is Latin and means around or about. Therefore, the term circa may be used to estimate a date approximately. Circa is often used to discuss historical dates that are not precisely known.
In a way, yes. You could say "___________ happened circa 1876". So yes, it is reffering to the past.
Circa.
Circa may be used for approximate dates or figures.
Ronnie and the Daytonas, circa 1965
The Bible doesn't give many dates or years as we know them in our calendars today. However, many have attempted to calculate these time periods beginning with Adam - circa 4004 BC - to Abraham -circa 1800 BC - to the Exodus - circa 1446 BC - to King David - circa 1000 BC - to the Babylonian conquest of Judah - circa 586 BC to the death of Christ - circa 31 AD and the final book of Revelation - circa 100 AD.
'About' is an English equivalent of 'circa'. But 'roughly, around, approximately' may be other equivalents. Sometimes the original Italian is used, particularly in the case of dates. In that case, an English language speaker may write ca. fifth century B.C.E. to mean 'about, approximately, around, roughly' the fifth century before the Christian or Common Era.
There is no such currency as the 'circa'. 'circa' means 'approximately'.
'circa' may not be a currency at all; if your referent says 'circa', it may mean 'about'