Answer:The interwar period in the United States, and in the rest of the world, is a most interesting era. The decade of the 1930s marks the most severe depression in our history and ushered in sweeping changes in the role of government. Economists and historians have rightly given much attention to that decade. However, with all of this concern about the growing and developing role of government in economic activity in the 1930s, the decade of the 1920s often tends to get overlooked. This is unfortunate because the 1920s are a period of vigorous, vital economic growth. It marks the first truly modern decade and dramatic economic developments are found in those years. There is a rapid adoption of the automobile to the detriment of passenger rail travel. Though suburbs had been growing since the late nineteenth century their growth had been tied to rail or trolley access and this was limited to the largest cities. The flexibility of car access changed this and the growth of suburbs began to accelerate. The demands of trucks and cars led to a rapid growth in the construction of all-weather surfaced roads to facilitate their movement. The rapidly expanding electric utility networks led to new consumer appliances and new types of lighting and heating for homes and businesses. The introduction of the radio, radio stations, and commercial radio networks began to break up rural isolation, as did the expansion of local and long-distance telephone communications. Recreational activities such as traveling, going to movies, and professional sports became major businesses. The period saw major innovations in business organization and manufacturing technology. The Federal Reserve System first tested its powers and the United States moved to a dominant position in international trade and global business. These things make the 1920s a period of considerable importance independent of what happened in the 1930s.
Explanation:
creating a hieroglyphic writing system
inventing an accurate calendar system
The Maya were a pre-Columbian people who inhabited the region of Mesoamerica (present-day Mexico, Guatemala, Belize, etc.). They peaked during the period from 250 AD to 900 AD, known as the Classic Period. The Maya are known to have had one of the most sophisticated pre-Columbian civilizations. In addition, they developed large cities and had advanced knowledge in areas such as mathematics. After 900 A.D., the Maya went into decline, and their cities emptied out.
The Maya became well known for having very advanced knowledge in areas such as Astronomy and Mathematics. In the religious field, the Maya were polytheists, that is, they believed in several gods and had human sacrifice as a very important ritualistic practice. These sacrifices were also of considerable political importance to these people.
Politically, they were organized in city-states, which means that the Maya never formed an empire with consolidated borders. The power of kings extended, exclusively, over the domains of their cities and satellite cities, if any. They survived from agriculture, and their main food was corn.
