Byzantine empire i'm pretty sure
It was the first peaceful transfer of power between the parties that were under U. S constitution. When Thomas Jefferson (republican) succeeded John Adams (federalist) and this transfer occurred in despite of the defects in the constitution that caused a big breakdown in the electoral system. There were many federalist attacking Jefferson during the campaign calling him an Un-Christian deist and the Republicans ceitized Adams administration's foreign, the defenses and how was his internal security policies.
I hope this answer help you.
The answer that is closest to how the events happened in reality is B) Tennis Court Oath; Louis XVI is executed; War begins; Directory comes to power. However, the correct answer is not present in the list of options. Those events happened in this order:
1) In 1789 The National Assembly took the Tennis Court Oath to achieve a constitution for France.
2)The Revolutionary wars began in 1792, when France was invaded by the army of Brunswick.
3)Louis XVI is executed on January, 21 1793 after being found guilty of conspiracy with foreign powers against France.
4) The Directory came to power in 1795 (November 2) when it took the place of the Committe of Public Safety
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.