Although slaves had been sold in the American colonies since at least 1619, slave labor did not come to represent a significant proportion of the labor force in any part of North America until the last quarter of the 17th century. After that time, the numbers of slaves grew exponentially.
A Pharmacologist earns an average salary of $103,686 per year. For the first five to ten years in this position, salary increases sharply, but any additional experience does not have a big effect on pay.
The annual salary of medical technicians and technologists varies depending on the city or state in which the worker is employed, and on the employer. According to the U.S. Bureau of Labor Statistics, in May 2008, the average salary for a clinical technologist was $53,500 per year.Those on the lower end of the wage spectrum earn about $36,000 per year, while those on the higher end of the wage spectrum earn $74,000 per year.On the other hand, the average annual salary for a medical technician was $ 35,380 in May 2008.About 50 percent of the medical technicians surveyed by the U.S. Bureau of Labor Statistics earned between $28,420 and $44,310 per year.ccording to the U.S. Bureau of Labor Statistics, in May 2008, the average salary for a clinical technologist was $53,500 per year. Those on the lower end of the wage spectrum earn about $36,000 per year, while those on the higher end of the wage spectrum earn $74,000 per year.