Original sentence: However, the three core components of the company date back to the second half of the nineteenth century.Modern UBS was formed through a merger of the Union Bank of Switzerland and the Swiss Bank Corporation in June 1998.UBS has its roots as a Swiss bank, originating in 1747, when its first branch was established in the Swiss region of Val Poschiavo.Union Bank of Switzerland, Swiss Bank Corporation, and Paine Webber or their antecedents, were all founded in the 1860s and 1870s
Edited sentence: UBS has  merger of the Union Bank of Switzerland and the Swiss Bank Corporation in June 1998