Essex County was one of the four original counties when Massachusetts Bay Colony created counties in 1643 which includes the area known as Cape Ann. The only major change came with the addition of three miles on the northern border when the Old Norfolk County was eliminated in 1680. It was first settled in 1623. This was a major port for the United States through the late 1800s. Fishing was a thriving industry from the beginning, and is still notable in Gloucester. The most popular historical event was the witch trials of Salem in 1692. Haverhill, on the Merrimack River, became one of the centers of the Industrial Revolution in the mid-1800s. As the city expanded with all the immigrant growth, the city annexed the town of Bradford on the south side of the river.
