Olympic Stadium, which could accommodate about twice the number of spectators. In 1996, Ajax moved to a new home ground in the southeast of the city known as the Amsterdam Arena, since 2018 known as the Johan Cruyff Arena. This stadium was built by the Amsterdam city authority at a cost of $134 million. The stadium is capable of holding 55,865 spectators. The Arena has a retractable roof and set a trend for other modern stadiums built in Europe in the following years. In the Netherlands, the Arena earned a reputation for a terrible grass pitch caused by the removable roof that, even when open, takes away too much sunlight and fresh air. During the 2008–09 season, ground staff introduced an artificial lighting system that finally reduced this problem considerably. The much-loved De Meer Stadion was torn down and the land was sold to the city council. A residential neighbourhood now occupies the area. The only thing left of the old stadium are the letters "AJAX", which nowadays is in place on the façade of the youth training grounds De Toekomst, near the Johan Cruyff Arena. Crest and colours Crest In 1900, when the club was founded, the emblem of Ajax was just a picture of an Ajax player. The crest was slightly altered following the club's promotion to the top division in 1911 to match the club's new outfits. In 1928, the club logo was introduced with the head of the Greek hero Ajax. The logo was once again changed in 1990 into an abstract version of the previous one. The new logo still sports the portrait of Ajax, but drawn with just 11 lines, symbolizing the 11 players of a football team. Colours Ajax originally played in an all-black uniform with a red sash tied around the players' waists, but that uniform was soon replaced by a red/white striped shirt and black shorts. Red, black and white are the three colours of the flag of Amsterdam. When under manager Jack Kirwan, however, the club earned promotion to the top flight of Dutch football for the first time in 1911 (then the Eerste Klasse or 'First Class', later named the ), Ajax were forced to change their colours because Sparta Rotterdam already had exactly the same outfit. Special kits for away fixtures did not exist at the time and according to football association regulations the newcomers had to change