A normal platelet count ranges from 150,000 to 450,000 platelets per microliter of blood. Having more than 450,000 platelets is a condition called thrombocytosis; having less than 150,000 is known as thrombocytopenia.
THE APPRENTICESHIP SYSTEM. The term 'emancipation' which was used to describe the Act of 1833 passed by the British Government to put an end to slavery in the British Empire, is ambiguous and misleading. Slaves were not freed in the sense that they were given unrestricted control over their freedom of movement.
If you mean the United States, slavery began in early August of 1619 when a ship carrying slaves from Africa docked in Jamestown, Virginia.Prior to that date there were no slaves held by Europeans in what is now the USA, although many Indian tribes enslaved captives from rival tribes.lavery started since the first day since Christopher Columbus set foot in America, and for 1000s of years before that. The Spanish originally did.