Complex sentence: The 22nd World Scout Jamboree was at Rinkaby in Sweden from 27 July 2011 to 8 August 2011, the 23rd World Scout Jamboree was at Kirara-hama, Yamaguchi City in Japan-it opened on 28 July 2015, and closed 8 August 2015.
Split into simpler sentences: The 22nd World Scout Jamboree was at Rinkaby in Sweden from 27 July 2011 to 8 August 2011. It opened on 28 July 2015, and closed 8 August 2015.