In 1886 munitions workers at the Royal Arsenal in Woolwich founded the club as Dial Square. In 1913, the club crossed the city to Arsenal Stadium in Highbury, becoming close neighbours of Tottenham Hotspur, and creating the North London derby. In 2006, they moved to the nearby Emirates Stadium. In terms of revenue, Arsenal is the eleven highest-earning football club in the world, earned €4388m in the 19-20 season. Based on social media following Arsenal had 9th largest following from 19-20 season. In 2020, Forbes estimated the club is the 7th most valuable club in the world, being worth US$2.68 billion. The motto of the club has long been "Victoria Concordia Crescit", Latin for "Victory Through Harmony".