M�lhens entered into a contract with an unrelated person from Italy named Carlo Francesco Farina who granted him the right to use his family name and M�hlens opened a small factory at Cologne's Glockengasse. In later years and after various court battles his grandson Ferdinand M�lhens had to abandon the name Farina for the company and their product. He decided to use the house number given to the factory at Glockengasse during French occupation in the early 19th century: 4711. Today, original Eau de Cologne is still produced in Cologne by both the Farina family, currently in the eighth generation, and by M�urer & Wirtz who bought the 4711 brand in 2006.
The Cologne carnival is one of the biggest street festivals in Europe. In Cologne, the carnival season officially starts on 11 November at 11 minutes past 11 a.m. with the proclamation of the new Carnival Season, and continues until Ash Wednesday. But the so-called "Tolle Tage" (crazy days) don't start until Weiberfastnacht (Women's Carnival) or, in dialect, Wieverfastelovend (Thursday before Ash Wednesday), which is the beginning of the street carnival. Z�lpicher Strasse and its surroundings, Neumarkt square, Heumarkt and all bars and pubs in the city are crowded with people in costumes dancing and drinking in the streets. Hundreds of thousands of visitors flock to Cologne during this time. Generally, around a million people celebrate in the streets on the Thursday before Ash Wednesday.
Cologne and D�sseldorf have a "fierce regional rivalry"., which includes carnival parades, football, and beer. People in Cologne prefer K�lsch while people in D�sseldorf prefer Alt. Waiters and patrons will "scorn" and make a "mockery" of people who order Alt beer in Cologne and K�lsch in D�sseldorf. The rivalry has been described as a "love-hate relationship".
� Farina Fragrance Museum, the birthplace of Eau de Cologne.
� R�misch-Germanisches Museum (English:
