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Square
Square is a financial services platform operated by Block, Inc.
History
Development for Square began in 2009, with Jack Dorsey and Jim McKelvey launching the first version of the service in 2010.1)
External links
1)
Robischon, N. (2010, May 11). Square Brings Credit Card Swiping to the Mobile Masses, Starting Today. Fast Company. http://archive.today/2013.10.21-075818/http://www.fastcompany.com/1643271/square-brings-credit-card-swiping-mobile-masses-starting-today