By using the "Select Start/End" range setting on the SharpCharts Workbench page, Basic and Extra members can create charts going back to January 1st, 1990 for US stocks and Mutual Funds (January 1, 1996 for most Canadian stocks). 

Subscribers to the PRO plan can create charts going back to 1970 and earlier (where available).  Click here to see a comparison of features for Basic, Extra, and PRO.

We also have a couple of predefined long-term charts in our Historical Chart Gallery.

Our partner site, DecisionPoint.com, provides detailed charts of the Nasdaq, the Dow, and the NYSE going w-a-y back.