ship images. The Makin Island Raid (occurred on 17 - 18 August 1942) was an attack by the United States Marine Corps on Japanese military forces on Makin Island (now known as Butaritari Island) in the Pacific Ocean.
Biannual is derived from the prefix bi-, which means two, twice, double, doubly, as it comes from the Latin bi-, meaning twice, double, and annual comes from the Old French twelfth century word, annuel, which derives from the Latin annus, year.
A biweekly payroll happens once every two weeks, such as every other Thursday or Friday. A semi-monthly payroll occurs twice per month, such on the 15th and last day of the month. Both payrolls have their advantages. Normally, a year has 365 days; however, a leap year has 366 days. A biweekly payroll has 14 days and 26 pay periods, which amounts to 364 days. Over time, this difference of one day during regular years and two days during leap years results in a 27th paycheck for biweekly workers.