Simplify the following text for a Grade 5 native English-speaking person.
Original: On 9 November 1799 ( 18 Brumaire of the Year VIII ) Napoleon Bonaparte staged the coup of 18 Brumaire which installed the Consulate .
Simplified: On 9 November , 1799 ( 18 Brumaire Year VIII ) Bonaparte took power . This event is called 18 Brumaire .