Year in Pictures: 2001

September:
The air on Wall Street was still filled with the dust of tragedy on Monday, Sept. 17 when the New York Stock Exchange reopened its doors after its longest shuttering since the bank runs of the Great Depression. When the opening bell rang once again, market officials got both what they had hoped for and what they had feared: investors sold fast and hard, but rationally and without panic, and the hurriedly rebuilt wiring of America's financial system held firm.

• Photos: Remembering 9/11: Evolution of Ground Zero