Completar frases Text "How it started"Versión en línea Complete the story of how was Whatsapp was created using Past Simple or Past Continuous according to what you need. por Melisa Longone 1 was studying working met was Jan Koum and Brian acton are the founders of Whastapp . Koum , born in Ukraine , first Acton in 1997 , while he in a state unidersity in Silicon Valley and for a computer security firm , inspecting Yahoo´s advertising system . Acton an engineer at Yahoo ! 2 grew working was left spent Within a year , Koum also as an engineer at Yahoo ! During their time at the company their friendship a lot . They both their jobs on the same day in 2007 and a year travelling around South America together . 3 allowed became started watching had was In early 2009 , Koum movies at a friend´s place when he the idea for Whatsapp . It as an idea to send notifications to friends , but soon an instant - messaging app that any smartphone user to text without paying SMS fees . 4 thinking were encouraged told was were were living using But by June 2009 , nobody , not even Jan´s friends , the app . Both men off their savings and still unemployed . Koum Acton that he about looking for a job . Acton him to give it a few more months . 5 got bought released trhilled asked When Koum the second version of the app , he Acton to become a co - founder and Acton his friends from Yahoo ! to invest $250 . 000 in the business . Fortunately , in February 2014 Facebook Whatsapp for $19 billion . They were !