C President Theodore Teddy Roosevelt
Cuba is what you are looking for.
1123 years. (330 CE-1453 CE)
Slavery during the 17th century worked more like indentured servitude. The first blacks to come to the Americas were indentured servants. They worked off the debt of their passage and were given land following their servitude. The whole system of indentured servitude fell away after land resources became limited. Blacks were allowed to purchase their freedom, buy land, even some having their own slaves. As the colonies entered into the 18th century, the black population was increasing as slave labor became more important to the plantations. Increasing numbers coupled with slave revolts led to the creation of slave laws in many of the colonies. These laws made slavery lifelong and a status associated with birth to a slave mother. Though slavery was becoming less common in the British Empire, when the US became independent, slavery became a part of the new country's economy and social structure.
As new magma cools and new rock is created the plates move farther and farther apart. But on the other end of the plate the plate subduction under the other plate making fresh magma and starting the cycle a new. The earth doesn’t increase in size due to the law of conservation of mass.