Yes, it is true that <span>Berlin had a free section (or sector) even though it was deep in Communist territory, since this section was "West Berlin" which was operated mainly by the Americans and British. </span>
Airplanes were used to get a clearer view on the battlefield, as well as using weapons to separate enemy troops.
Gthe accuracy or sensitivity of the data that is displayed on the map.
The correct chronology would be as follows:
The US government establishes the office of Indian trade. In 1806, Congress created the Office of Indian Trade, an office in charge of supervising the network of public Indian trading factories that the US had from 1795 to 1822. This office was closed in 1822 because of cases of corruption.
The Choctaw sign the treaty of dancing rabbit creek. The Treaty of Dancing Rabbit Creek was a treaty signed in 1830 between the Choctaw Nation and the United States. This was the first removal treaty put into effect under the Indian Removal Act passed by President Andrew Jackson that same year. As a consequence of this act, the Creek ceded control of large part of their territory in what today is Mississippi in exchange for land in Indian Territory, today Oklahoma.
The Supreme Court rules in Worcester v. Georgia. Worcester v. Georgia was a legal case in which Chief Justice John Marshall ruled, in 1832, that the relationship between the American Indian Nations and the United States was that of nations; consequently, only the federal government, and not the governments of the individual states, had the power to deal with the American Indians.
The US government forces Seminole tribe to relocate from Florida to Indian territory. Per the Indian Removal Act of 1830, the Seminole Nation was forced to relocate to Indian Territory. Some of the Seminoles were removed after signing the Treaty of Payne’s Landing in 1834. However, the majority of the nation declared the treaty illegitimate and refused to leave. This resulted in a struggle known as the Second Seminole War (1835–1842). As a consequence of this war, most of the Seminole Nation had to relocate from Florida to Indian Territory.
The Gupta empire was the one who had the concept of the round earth but also had the concepts of math, medical advances, new textile and literature…
Hope this is helpful ;)