The Kingdom of Armenia was an ancient state located in the South Caucasus region, existing from around 321 BC to 428 AD. It was known for its rich culture, strategic location, and as a center of trade between Europe and Asia. The kingdom reached its height under the rule of King Tigranes the Great, who expanded its territory significantly. Armenia was the first nation to adopt Christianity as its state religion in 301 AD, which played a crucial role in shaping its identity. The kingdom's capital was Artashat, and it was known for its impressive architecture and contributions to art and literature. The fall of the kingdom marked the beginning of a long period of foreign domination.