The event you're describing is called the Ra pe of Nanking. It happened in 1937. Around 50,000 innocent Chinese people were killed by Japanese troops.
It might be said that the colony which had its charter revoked because of mismanagement was Pennsylvania. Penn owned the land and sold it to settlers at low prices instead of granting it out expecting to get a profit but he never did. This cause the opening of the colony which let it tho decline in the number of servants.
The start of the Protestant Reformation to the 1517 publication of Martin Luther's “95 Theses.” Ultimately the Protestant Reformation led to modern democracy, skepticism, capitalism, individualism, civil rights, and many of the modern values we cherish today. The Protestant Reformation increased literacy throughout Europe and ignited a renewed passion for education.