Respuesta :
The most likely answer would be C. 1. Egyptian calendar (with 365-day year); 2. Julian calendar (with leap years); 3. Gregorian calendar (with year 1 as the year Christ was born)
During the Egyptian times, they used to use the stars and determined the 365-day year. They noticed that there was a discrepancy but did nothing about it since it was minuscule. At the time Roman times, Julius Caesar and his men worked this on. Thus the leap year was born. Around 1500s, Pope Gregory XIII asked helped with an astronomer friend and made the Gregorian calendar.
During the Egyptian times, they used to use the stars and determined the 365-day year. They noticed that there was a discrepancy but did nothing about it since it was minuscule. At the time Roman times, Julius Caesar and his men worked this on. Thus the leap year was born. Around 1500s, Pope Gregory XIII asked helped with an astronomer friend and made the Gregorian calendar.
B. because our calendars have a leap year from the Julian calendar, 365 days like the Egyptian Calendar, and counting up form year 1 when christ was born.