Press Release Details

Webcast Alert: The Thomson Corporation to Report First-Quarter 2006 Results

April 20, 2006 at 9:03 AM EDT

STAMFORD, Conn., April 20 /PRNewswire-FirstCall/ -- The Thomson Corporation (NYSE: TOC; TSX: TOC) announces the following Webcast:

    Who:      President and CEO Richard J. Harrington and Executive Vice
              President and CFO Robert D. Daleo

    What:     Presentation and Discussion of First-Quarter 2006 Results for
              The Thomson Corporation

    When:     April 27, 2006 @ 9:00 a.m. ET

    Where:    www.thomson.com

    How:      Live over the Internet - To participate in the webcast, visit
              www.thomson.com and click on "Investor Relations" at the top of
              the page and then "Executive Presentations" at the left side of
              the page.

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

              Jason Stewart, Vice President, Media Relations
              203-539-8339, jason.stewart@thomson.com

    The webcast will be archived at www.thomson.com.

    The Thomson Corporation

The Thomson Corporation (www.thomson.com), with 2005 revenues of $8.70 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 e-learning and assessment, scientific research and healthcare. With operational headquarters in Stamford, Conn., Thomson has approximately 40,000 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://update.microsoft.com/windowsupdate/v6/default.aspx and at least a 28.8Kbps connection to the Internet. If you experience problems listening to the broadcast, send an email to webcastsupport@tfprn.com.)

SOURCE  The Thomson Corporation
    -0-                             04/20/2006
    /CONTACT:  Frank Golden, Vice President, Investor Relations,
+1-203-539-8470, frank.golden@thomson.com, or Jason Stewart, Vice President,
Media Relations, +1-203-539-8339, jason.stewart@thomson.com/
    /Photo:  http://www.newscom.com/cgi-bin/prnh/20020227/NYW014LOGO /
    /Web site:  http://www.thomson.com /
    (TOC TOC.)

CO:  The Thomson Corporation
ST:  Connecticut
IN:  FIN
SU:  CCA

DO
-- NYTH105 --
2821 04/20/2006 09:00 EDT http://www.prnewswire.com