Answer:
Three countries that won independence from the Ottomans in the 19th Century were Montenegro, Serbia and Bulgaria.
Explanation:
Until 19th Century Ottoman Empire was dominating the Balkan Peninsula. But with the support of Russia these states started rebelling against Ottomans and created their states. Many of them, including the mentioned ones gained independence after the Great Eastern Crisis and the Berlin Peace Treaty in 1878.
Answer:
The Hartford Convention
Explanation:
"This mostly Federalist convention in New England ended up suggesting some constitutional amendments but was alleged to consider the secession of New England from the Union and a separate peace with Britain. After the war the convention was widely viewed as an act of treason and a black mark on the reputation of the Federalist party."
StackExchange - History
Laissez-faire is an economic philosophy of free-market capitalism that opposes government intervention, but Roosevelt enacted government programs to create a "welfare state" and provide jobs instead.