What is the lecture mainly about?

Good morning and welcome to American stuthes 101.1 would like to begin this semester by discussing the Northeast, which includes twelve states and a small area called the District of Columbia, the home of the national government.
    The Northeast is a very important part of the United States. Ahhough it covers about six percent of the nation’s area, it contains nearly one-fourth of the country’s population. New York, the most popular city in the United States, and several other large cities are located here.
    Why are these twelve states so important? In the first place, the Northeast was one of the first parts of the country setded by Europeans. Busy cities developed there when most of America was still a wild land. Many crucial events in the nation’ s early history took place there. I’11 be describing some of those events on Wednesday in my second lecture.
    Today the Northeast is a great manufacturing and trading region. Thousands of factories produce a wide variety of foods and provide other regions of the country with what they need. Many large manufacturing firms have their central headquarters here. Some of the country’ s best known colleges and universities are also located in this region.
    Finally the Northeast is the principle location for much of the country’s international trade. In the heart of this region in New York city is the home of the United Nations.