Press Release Details

The Thomson Corporation to webcast CEO presentation at Morgan Stanley Media & Communications Conference

September 8, 2004 at 12:00 AM EDT
Stamford, Conn., 09/08/2004

The Thomson Corporation (NYSE: TOC; TSX: TOC) announced today that Thomson President and CEO, Richard J. Harrington, will present at the 9th Annual Morgan Stanley Media & Communications Conference on September 9th. The Conference is being held from Sept. 8th to 9th 2004 in Washington, D.C.

The audio-only webcast will be available to listeners live and on-demand.

When:
Mr. Harrington will be presenting on Thursday, September 9, 2004 @ 11:00 am (Eastern)

Where:
www.thomson.com

How:
Live over the Internet -- Simply log on to the web at the address above, and click on “Investor Relations” at the top of the page.

The Thomson Corporation
The Thomson Corporation (www.thomson.com ), with 2003 revenues of $7.44 billion from continuing operations, is a global leader in providing integrated information solutions to business and professional customers. Thomson provides value-added information, software tools and applications to more than 20 million users in the fields of scientific research and healthcare, law, tax, accounting, financial services, higher education, reference information, and corporate training and assessment. With operational headquarters in Stamford, Conn., Thomson has approximately 38,000 employees and provides services in approximately 130 countries. The Corporation's common shares are listed on the New York and Toronto exchanges (NYSE:TOC; TSX: TOC).

MEDIA CONTACTS

Jason Stewart
Director, Public Relations
The Thomson Corporation
phone: +1 203 539 8339
jason.stewart@thomson.com

Frank Golden
Vice President, Investor Relations
The Thomson Corporation
phone: +1 203 539 8470
fax: +1 203 539 7709
frank.golden@thomson.com