This week marks the one-year anniversary of an earth-shattering week for the financial system, in which Lehman Brothers failed and AIG received an emergency bailout. Washington-related events will be a mix of reflections on the past and examinations of possibilities for the future, with regulatory restructuring hearings in the House.

Monday

Federal Reserve Board Governor Betsy Duke will address the American Institute of Certified Public Accountants at their annual banking conference at the Marriott in Woodley Park at 8:30am. She’ll discuss regulatory and accounting policies in a “changing landscape.”

President Obama will address Wall Street at midday to mark they one-year anniversary of Lehman Brothers’ collapse. He’ll speak from Federal Hall in downtown Manhattan, across the street from the Federal Reserve Bank of New York. Treasury Secretary Timothy Geithner will attend.

National Economic Council Director Larry Summers will appear before the Fortune Most Powerful Women Summit in San Diego for a conversation with Fortune’s Washington bureau chief, Nina Easton, beginning at 5:30pm Pacific Time.

Tuesday

Fed Chairman Ben Bernanke will speak at the Brookings Institution at 10am. He’ll look back at “a year of crisis.”

The House Financial Services Committee will hold a 10am hearing on enhancing the Community Reinvestment Act. Witnesses have yet to be named. At 2pm, the Financial Services Subcommittee on Oversight and Investigations will convene to talk about the role of technology in financial services oversight. There are no witnesses listed for that hearing yet, either.

Federal Deposit Insurance Corp. Chairman Sheila Bair will appear for a conversation with CNBC’s Maria Bartiromo at the Fortune Most Powerful Women Summit, beginning at 3pm.

Wednesday

SBA Administrator Karen Mills will appear on a panel on powerful women in small business at the Fortune summit at 10am

Thursday

The House Agriculture Committee will hold a 10:30am hearing to review the Obama administration’s proposed legislation to regulate derivatives markets. Witnesses have yet to be announced.

Friday

Bair will appear on Friday at the Future of Global Finance Conference which will be held at Georgetown University.