Short answers, pulled from the story.
The earliest written record of a settlement that would become Zurich dates to the late 2nd century AD. A tombstone discovered at the Lindenhof bears the inscription Turicum customs post from this period.
Rudolf Brun established guild laws in 1336 and became the first independent mayor not nominated by the abbess. He took power after King Henry III granted convent rights to hold markets and mint coins in 1045.
Uetliberg reaches 917 meters above sea level offering views of the city and Alps from its summit. The annual mean temperature measured at the Federal Office of Meteorology station in Zurich-Fluntern is approximately 13 degrees Celsius.
Zurich contributes approximately 10% to Switzerland's gross domestic product according to economic data. Approximately 90% of workers are employed in the tertiary sector within the Greater Zurich Area.
The Dada movement was founded in 1916 at the Cabaret Voltaire by artists including Marcel Breuer. Max Bill maintained an atelier in Zurich during the Nazi takeover of Germany.