01.07.2012: Rolang | Roshani Language Instiute is established and offered Business English Training.
01.03.2013: Services were extended to Technical English
17.10.2013: Rolang is a member of Trainertreffens Deutschland (member of DVWO)
01.01.2015: Roweit | Roshani Weiterbildung Institut is established and offers business simulations, Coachings und soft-skills training
22.09.2015: Semi Finalist at the Hessian Entrepreneuer of the year 2015 ‘Hessischen Gründerpreis 2015’
20.10.2015: Partner with the German-Iranian Chmaber of Commerce and Industries (AHK Iran)
20.12.2016: Partner with the Frankfurt School of Finance and Management
13.09.2017: Member of iMove-Germany – Training – Made in Germany