A vassal was paid for past services.....
Ancient Indian civilizations had many different achievements. The most important is probably medicinine. One very popular ancient Indian medicine is known as Ayurveda. This involves many different herbs and the healing of body and mind. India is also known for being the first place to use algebra and even calculus, and also invented the number zero.
Answer:
Emperor Constantine the Great
During the reign of the Roman Emperor Constantine the Great (AD 306–337), Christianity began to transition to the dominant religion of the Roman Empire.
Explanation:
