The term 'FOURTH MONTH' is referring to the fourth month of the year, APRIL. APRIL is the fourth month of the Gregorian calendar and has 30 days. It is the second month of spring in the Northern Hemisphere and the second month of autumn in the Southern Hemisphere. The name APRIL is derived from the Latin word 'aperire, ' which means 'to open, ' as it is the time of year when buds open and the spring season begins.