Complex sentence: On July 7,1874, Colonel Nicolae Haralambie with Ion Ghica and a third person flew over Bucharest in a hydrogen balloon named "Mihai Bravul", which had made its first flight on June 9 of the same year.
Split into simpler sentences: On July 7,1874, army colonel Nicolae Haralambie together with Ion Ghica and a third person perform a flight over Bucharest in a hydrogen balloon. The balloon, named "Mihai Bravul", flew for the first time on June 9 of the same year.