It would be "(D) The Philippines, Guam, and Puerto Rico" that were acquired by the United States as a <span>result of the Spanish-American War, since these had previously been owned by the Spanish, who lost the war. </span>
The Calender is based on the farming seasons, however, the Egyptians noticed that they need a few more days to fit the seasons, So the calendar is important Egyptian achievement because they added five days, holidays to thank gods, and they invented 365-day calendar.