Dating to years:
== | May have occurred at any time during the current year |
>> | Occurred either this year or early in the following year |
<< | Occurred either this year or in the previous year |
?? | Occurred either this year or in an earlier year, for instance an unknown year during a war or reign |
++ | A "continuous" event spread over many years, for instance a life or reign |
Dating to months:
-B | Babylonian calendar |
-E | Egyptian calendar |
-G | Greek (Athenian) calendar |
-M | Macedonian calendar |
-R | Roman (pre-Julian) calendar |
[none] | Standard Julian calendar |