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.
The Germans were mad and wanted to blame the German-Jews
The most popular is answer (A) Benjamin Franklin.
The process in 1990 in which the German democratic republic joined the federal republic of Germany. They removed Hungary's boarder fence with Austria it caused an exodus of thousands of east Germans fleeing to west Germany and Austria via Hungary.