What is The War Income Tax Revenue Act of 1917, what was its original intent, and what effects has it had on societal outcomes in the United States?

What is The War Income Tax Revenue Act of 1917, what was its original intent, and what effects has it had on societal outcomes in the United States? Write a 1,000-word essay on the history, its effects specifically in regard to charitable organizations, larger societal impacts, and benefits and/or implications to date in the United States.