Spain and Portugal are two powerful known empires at the time. They both form a line in the Atlantic Ocean known as the Treaty of Tordesillas. So, as per the Treaty of Tordesillas, lands in the west of the line belonged to Spain. and lands in the east of the line given to Portugal.
The Salem Witch Trials were a time in the late 1600s. It first started when two girls were acting strangely as if someone was poking them. More than 200 people were accused of being witches. Some were found guilty and hanged.