The president 2019: Donald Trump
It was the the Viking.
Actually, the first person known to have settled in Greenland was Erik the Red, from Norway, who first sailed to Iceland and then to Greenland.
The FIRST CONTINENTAL CONGRESS wrote a petition to the king.
The America colonists were not given any place in the British parliament and the laws that this parliament are enacting are affecting them negatively. They wanted to avoid war with the British so they decided to write a letter to King George to present their grievances.
The development of a system of mass production and manufacturing meant that products were far easier, and therefore cheaper to make. This reduced the price of the products, meaning that more people could afford them.
The answer is D, the Know Nothings.
Hope this helps!