The Internal Revenue Service is the revenue service for the United States federal government, which is responsible for collecting taxes and administering the Internal Revenue Code, the main body of the federal statutory tax law.
The Bureau of Fiscal Service is a section of the U.S. Treasury Department. Information is available on the U.S. public debt, State and Local Government Series, T-Bill and Savings Bond information and Consumer Fraud Information.
Information available includes historical information, duties and strategic plan of the department and it's Bureaus and offices, business tax, contracting and procurement, importing/exporting, and EIN numbers.
Yahoo! Finance contains daily historic stock price data. Enter a company's ticker symbol and then select Historical Prices. Only currently active companies are available.