Nicolaus Copernicus was a polish astronomer known as the father of modern astronomy
The first four Caliphs were Abu Bakr<span>, </span>Umar<span>, </span>Uthman<span>, and Ali
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The Supremacy Clause (Article 6, Clause two) declares that the Constitution is the "supreme law of the land". It establishes that federal laws rule over state laws. This ensures that there will be no disagreement between the state and the national government over who has more authority. Federalism is a system of government where the power is shared between the state and national government, but this does not mean that they are equal. The national government will be "supreme".
Treaty of Paris ends Spanish-American War. In France, the Treaty of Paris is signed, formally ending the Spanish-American War and granting the United States its first overseas empire. The Spanish-American War had its origins in the rebellion against Spanish rule that began in Cuba in 1895.