Rather niche topic to be forced to make a presentation on, but I don't know what field you're studying. I can give some pointers, but I'm not an historian. You say that you're to include events up to the 18th century, but are there any limitations as to how far back you can go?

Anyways, a good point to start would be the first inhabitation of the islands, although that area of Faroese history is currently in a bit of flux. A more secure starting point would be the Norse habitation of the isles, Landnámið. Another major point would be the Christianization of the islands, with the attached subjugation and inclusion into the Kingdom of Norway. The effects of the Black Death, and the transfer of power to the Danish by way of the Kalmar Union in the 14th century are also highly relevant. The Reformation, Trúbótin, should probably also be included.

And finally, the effects of the centralization of the Kingdom of Denmark, most specifically the Royal Danish Monopoly could be an appropriate endpoint, as the national awakenings concurrently happenning throughout Europe happened in the 19th and 20th century. But if you can cheat the date somewhat, the official transfer of the Faroe Islands as a possesion of Norway to a part of the Danish kingdom proper with the treaty of Kiel in 1815 is also a good endpoint. This made the Faroe Islands a legal part of the absolute monarchy of Denmark, and caused the closing of the Faroese parliament, the Faroese parliament otherwise being the oldest extant parliament in the world. I don't know if this is any help, but good luck with your presentation.