The federal, state, and local tax systems in the United States have been marked by significant changes over the years in response to changing circumstances and changes in the role of government. The types of taxes collected, their relative proportions, and the magnitudes of the revenues collected are all far different than they were 50 or 100 years ago. Some of these changes are traceable to specific historical events, such as a war or the passage of the 16th Amendment to the Constitution that granted the Congress the power to levy a tax on personal income. Other changes were more gradual, responding to changes in society, in our economy, and in the roles and responsibilities that government has taken unto itself.” In an essay of at least 1,500 words, provide examples to support this statement and discuss how your examples affected the tax code at that time.