American Indians, that is Native Americans, are a very small minority now due to numerous reasons. For starters, many of them died because of the diseases that the colonists brought with them that the natives weren't immune to, like the measles. A large amount of them died when moving westwards as they were kicked out of their land, or in the wars for defending their land. What remains is those who accepted their life in reservations at the time.
Austria-Hungary had control over Serbia, but Serbia did not like that fact. A group of terrorist Serbians called "The Black Hand" assassinated Archduke Ferdinand of Austria-Hungary to assert their frustration over them. This started opening up some of the secret alliances, and Austria-hungary and Serbia went to war. Germany was allied with Austria-hungary at the time, so they joined the fight and declared war on Russia, one of Serbia's allies. Then Germany declared war on France, who had England backing them up. Finally, Germany sank of the United States's ships (actually multiple), thus causing almost all major countries to go at war with one another.
Answer: The kingdom of Aksum lasted for around 905 years.
I believe it was because, that was such a great victory for the colonists over the British that after it was all over, everyone had heard about it. Hope this helps.
It was the Louisiana purchase.