Lots of non-Islamic terrorism all over the world...Northern Ireland, the Basque country, the US during the 60s and 70s, various communist movements all over the world, the bomb throwing in the US ca. 1880s, almost every separatist movement since the invention of gunpowder...
but it is true that terror is often used by Islamic groups. But not exclusively.
Even the Zionists in pre-modern Israel Palestine had people who were using terrorist tactics against the British.
However, I refer to an ideology which has exclusively pushed forward an agenda which is grounded and fueled in violence against non muslims.
My statement stands.
Islam = violence