Where Do The Months Of The Year Get Their Names From?

JANUARY
Named after the Roman god Janus, the god of beginnings and endings.
FEBRUARY
Named after the Italian god Februus.
MARCH
Named after the Roman god Mars, this is the first month of the Roman year.
APRIL
Called Aprills, from aperire, "to open". Derived from that fact this is the months where the buds open
MAY
Named after the Roman goddess of honor and reverence, Maiesta
JUNE
Named after Juno,  the protector and special counselor of the Roman state and queen of the gods.
JULY
Named after Julius Caesar in his honor in the year 44BCE. This was the month in which Julius Caesar was born.
AUGUST
Named after the first Roman emperor Augustus. Originally called sextills stemming from sextus meaning "six".
SEPTEMBER
From the word septern meaning "seven".
OCTOBER
From the word oct meaning "eight".
NOVEMBER
From the word novern meaning "nine".
DECEMBER
From the word decern meaning "ten".

The Roman-origin names were incorporated intot he modern calender by the Christians rather than being cxhanged in order to show that the Christian system was the all-powerful.

Following the French revolution there were attempts to change the calender completely, in France at leasdt, with such things as a ten day working week. The old system won the upperhand very quickly indeed.