Short answers, pulled from the story.
Julius Caesar first mentioned the ancient oppidum that corresponds to modern Paris in the mid-1st century BC as Lutetia Parisiorum. This name translates to 'Lutetia of the Parisii', referencing the Gallic tribe that inhabited the area from around the middle of the 3rd century BC.
Christianity was introduced in the middle of the 3rd century AD by Saint Denis, who was beheaded on the hill that became Montmartre after refusing to renounce his faith. The Parisii people established a major north south trade route crossing the Seine on the Île de la Cité which gradually became an important trading centre.
The highest recorded temperature was 42.6°C on the 25th of July 2019 while the lowest was -23.9°C on the 10th of December 1879. Average temperatures reach between 19°C and 21°C in July with eight hours of sunshine per day.
In 1974, Paris received municipal autonomy from the National Assembly making it one of only two cities to receive this status twice. Jacques Chirac became the first modern elected mayor in March 1977 after serving as president since 1871.
The Louvre received two point eight million visitors in 2021 holding position as world's most-visited museum featuring treasures like Mona Lisa and Venus de Milo statue. Centre Georges Pompidou second-most visited museum had one point five million visitors also known as Beaubourg housing modern art collections.