Answer:
American and Canadian railroads begin using four continental time zones to end the confusion of dealing with thousands of local times.
Explanation:
Answer: B. Are able to operate in every country that is part of the group
Explanation:
Hello Historical narrative would be long and wordy, while the timeline would be short and to the point.
It helped a lot with travel and trading was easy
The Battle of Thermopylae was part of the Second Persian War. Wanting to avenge the Battle of Marathon loss, Xerxes of Persia sent an army to fight 300 <span>Spartans, Helots, and northern city-state soldiers, defeating them after three days.</span><span> The Spartan army was led by King Leonidas. The Spartans were victorious for the first 2 days of battle despite being outnumbered by the Persians. The Spartans lost after a betrayal by one of their own who revealed a secret path behind the Greek lines.</span>