Before the Constitution was ratified by the states in 1787, the Articles of Confederation made trade very difficult because there wasn't a strong central power. It took several years for the powers of the Constitution and trade to take form.
Answer: The Romans thought of themselves as highly religious, and attributed their success as a world power to their collective piety (pietas) in maintaining good relations with the gods. The Romans are known for the great number of deities they honored, a capacity that earned the mockery of early Christian polemicists.
Explanation:
Well a physical property you could measure could be boiling point which would mean the temperature before melting. All you would have to do is keep turning up the temperature until it starts melting.