Press Release Details

Webcast Alert: The Thomson Corporation To Webcast 2004 Investor Day Conference - October 6, 2004

October 1, 2004 at 10:50 AM EDT

STAMFORD, Conn. and TORONTO, Oct. 1 /PRNewswire-FirstCall/ -- The Thomson Corporation (NYSE: TOC; TSX: TOC) today announced that it will provide a live webcast of the Corporation's Investor Day Conference on October 6, 2004.

     What:     President and CEO, Richard J. Harrington, and other Thomson
               executives will discuss the Corporation's growth strategy,
               business highlights and overall market conditions.

     When:     Wednesday, October 6, 2004 @ 9:30 a.m. (EDT)

     How:      To access the webcast, simply log on to:

               http://www.thomson.com/corp/investor_relations/ir_home.jsp

     Contacts: Frank Golden, Vice President, Investor Relations
               (203) 539-8470, frank.golden@thomson.com

               Jason Stewart, Director, Public Relations
               (203) 539-8339, jason.stewart@thomson.com

    The Thomson Corporation

The Thomson Corporation (http://www.thomson.com), with 2003 revenues from continuing operations of $7.44 billion, 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 law, tax, accounting, financial services, higher education, reference information, corporate training and assessment, scientific research and healthcare. 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 stock exchanges (NYSE: TOC; TSX: TOC).

Minimum Requirements to listen to broadcast:

The Windows Media Player software, downloadable free from http://www.microsoft.com/windows/windowsmedia/EN/default.asp and at least a 28.8Kbps connection to the Internet.

SOURCE  The Thomson Corporation
    -0-                             10/01/2004
    /CONTACT:  Frank Golden, Vice President, Investor Relations,
+1-203-539-8470, frank.golden@thomson.com; or Jason Stewart, Director, Public
Relations, +1-203-539-8339, jason.stewart@thomson.com /
    /Web site:  http://www.thomson.com
                http://www.thomson.com/corp/investor_relations/ir_home.jsp /
    (TOC TOC.)

CO:  Thomson Corporation
ST:  Canada, Connecticut, New York
IN:  CPR FIN STW PUB
SU:  BFA

AP 
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9107 10/01/2004 12:19 EDT http://www.prnewswire.com