Here are some one liners...
Halley's Diving Bell and the Bends -- Halley turns the diving bell into something practical. I talk about the Brooklyn Bridge and the bends.
Leisler's New York Rebellion -- During Prince William's fight to depose King James the 2nd, Jacob Leisler secures New York for Prince William and since William is now King, that should be a good thing, but Jacob is going to swing for it.
Halley's Diving Bell and the BendsEdmond Halley is best known for predicting Halley's Comet, but Halley has many talents. He has designed a diving bell that can be submerged 60 feet and supplied with air for up to an hour. Metal diving bells and wooden-framed submarines have been something of a novelty up until now, but once Halley's design is turned into reality, extended excursions underwater will be possible. The diving bell will become useful for salvage operations and the higher pressures placed on the body are being used as a medical treatment for some diseases.  
Leisler's New York RebellionFor some reason, Jacob Leisler is going to hang even though he supported the New King William the 3rd and Queen Mary the 2nd of England. During the fight between Prince William the 3rd (a Protestant) and King James the 2nd (a Catholic) most of the Colonists supported William as the new King. In order to secure New York and the region in the name of King William, several colonists arrested the local officials and took the fort overlooking New York Harbor. These colonists designated Jacob Leisler as their leader so he quickly consolidated his position and waited for a new governor of New York to arrive from England. This all seems fine except that while they were waiting, the people of Albany objected to Jacob as the one to lead the colony. And then, the new Lt. Governor arrived from England... without the Governor and without official papers. (Those are with the Governor on the OTHER ship). Jacob refuses to turn over leadership to a man without official papers. The guys in Albany would like to roast Jacob over a low fire. The Lt. Governor appoints a number of advisors, mostly from the Albany group and when the official governor finally arrives, things do not look good for Jacob. Even so, Jacob might skirt by except that the Governor has been drinking, and with everyone encouraging the Governor to hang Jacob, he signs the order, and Jacob swings. 
This Year on Wikipedia
Year 1691, Wikipedia.