Infinity symbol Infinity symbol The infinity symbol (sometimes called the lemniscate) is a mathematical symbol representing the concept of infinity. The shape of a sideways figure eight has a long pedigree; for instance, it appears in the cross of Saint Boniface, wrapped around the bars of a Latin cross. However, John Wallis is credited with introducing the infinity symbol with its mathematical meaning in 1655, in his "De sectionibus conicis". Wallis did not explain his choice of this symbol, but it has been conjectured to be a variant form of a Roman numeral for 1,000 (originally CIƆ, also CƆ), which was sometimes
Infinity on High tours to promote the album, including the Friends or Enemies Tour, the Honda Civic Tour, and the Young Wild Things Tour. In the wake of the album's leak on the internet, the band included a download code for "Leaked in London", a live extended play, with each purchase made during the first week of its initial release. "Infinity on High" debuted at number one on the U.S. "Billboard" 200, selling 260,000 copies in its first week, making it Fall Out Boy's first number one album and second top ten effort. It also reached number one in New Zealand and opened