It seems that you have missed the given options for this question, but anyway, here is the answer. The conditions wherein the government should be changed is when the people become dissatisfied with it and that, <span>when it fails to grant people their rights. The government's service is always for the people. Hope this is the answer that you are looking for.</span>
When Charles John Davids proposed to Madison Al Newert 3/4/1884 somewhere in Africa. And when Jesus Christ said good morrow to James Heartyfult 19/6/2004. Just off the top of my head.
People wanted to see why an event like this is worth celebrating and what the outcome of columbus voyage to the new world had done to help found a new nation that set an example to creating a republic for the people.