I’m sure you know of how four planes were hijacked by terrorists bringing about enormous destruction in New York on September 11, 2001. What you might be wondering is how it changed the World! It triggered the Global War on terrorism which you’d be surprised to know is one with most diversified nations participating. All those Antiterrorism laws we are now proud of were lead by these attacks and the general stereotyping of Muslims as terrorists and a major hatred towards the religion in United States in particular is still evident. Invasion of Afghanistan by USA to depose the Taliban and the Iraq war in 2003 are too believed to have been triggered by these attacks. They changed how the world reacted to terrorism, and the financial losses incurred due to closed stock markets for six days changed how the world economy functioned.