2007

• Academic Systems® re-launches in market as PLATO Learning’s flagship product line for online college instruction.

2006

• PLATO Learning debuts its state-of-the-art online delivery platform—the PLATO Learning Environment™—for integrated standards management, assessment, and interactive instruction for K–adult.
• PLATO Learning unveils Straight Curve™—teacher-facilitated supplemental curriculum that leverages innovative technology to enrich core classroom instruction.

2005 

• Michael Morache named PLATO Learning President & CEO

2004

• Partnered with Executive Intelligence to distribute PLATO® Data Management and Analytics

2003

• Acquired New Media (Holdings) Limited, a leading publisher of science simulation software, and its wholly owned subsidiaries.
• Merged with Lightspan, Inc., a leading provider of elementary and post-secondary solutions.

2002

• Acquired Learning Elements, the developer of FOCUS™ Reading and Language program for emerging K–3 readers.
• Acquired NetSchools Corporation, the leading provider of internet-based e--learning software and services.

2001

• Acquired TeachMaster Technologies, a leading standards-based curriculum company.
• Acquired Wasatch Interactive Learning to become a K–adult company

2000

• Acquired CyberEd, Inc. and its award-winning science courseware
• TRO Learning, Inc. changed its name to PLATO Learning, Inc. to capitalize on the strength of the PLATO® brand name in the educational software market

1992

• TRO became a publicly held company and changed its name to TRO Learning, Inc.

1989

• The Roach Organization, Inc. (TRO) was formed when William R. Roach and two venture capital firms acquired the PLATO courseware from Control Data

1986

• With the growth of personal computer technology, the PLATO courseware library and management system advanced to delivery via Local Area Networks

1976

• Control Data obtained rights to the PLATO name and courseware from the University of Illinois and began marketing the product two years later.

1963

• Began with Control Data and University of Illinois using a grant from the National Science Foundation to develop the technology and content for a computer-assisted instructional system that would become known as PLATO.