The type of early communications that is thought to be between 10,000 - 12,000 years old and can be fond worldwide is : PetroGlyph
It was some sort of carving on the Rocks that ancient people used to communicate before the age of literature
hope this helps
I would choose non-polluting energy source and useful in remote areas - that is if there are plants and industries that are away from the general population.
Answer:became President after Kennedy's assassination
Explanation:
Answer:
Some fugitives went to Canada instead of staying in northern states because they risked being captured in northern states.
Explanation:
During the time of slavery in the southern United States, escaping slaves had to leave the southern states in order to guarantee (to some extent) their freedom. Even so, many times the owners crossed the Mason-Dixon Line and captured the fugitives, either in open places in front of anyone, or with the collusion of the authorities. Therefore, once the Underground Railroad (the organization that was in charge of helping the slaves to escape) was formed, many routes were directed directly to Canada, so as not to saturate the routes to the great northern cities such as New York, as to guarantee the safety of slaves in a country that had abolished slavery in 1807.
