2methods a archeologist would use to determine how old an artifact may be

The vedic age is known for of all of following except the concept of zero hinduism the vedic calendar the use of manure to enrich the soil

The passage of alien and sedition acts led directly to what?

After the success of the sputnik launch, the united states feared that they would never be able to launch their own satellite, the ussr had used technology developed by the united states, the soviets had superior nuclear capabilities, that any future us satellites would not be as successful.