1982 - Application of the recall principle
1984 - Application of the minimum information principle
1985 - First ever application of the optimum spacing of repetitions
1987 - First computer implementation. SuperMemo 1.0 introduces the concept of E-factor
1988 - SuperMemo 2 and SuperMemo 3
1989 - SuperMemo 4 - optimization based on the matrix of optimal intervals
SuperMemo 5 - optimization based on the matrix of optimal factors
1990 - Optimization of learning with its enthusiastic predictions about the future of SuperMemo provides an inspiration and incentive to commercialize the method. It also includes a comprehensive theoretical analysis of the learning process conducted with SuperMemo and presents the model of intermittent learning
1991
July 5, SuperMemo World is formed by recent graduates of computer science: Piotr Wozniak and Krzysztof Biedalak. The real capital: one 286 personal computer.
SuperMemo 6 - optimization based on approximation of forgetting curves
November, SuperMemo 6 becomes a finalist of the Software for Europe 1992 Award Competition
1992
March, SuperMemo World displays its products at CeBIT '92
September, SuperMemo 6 receives the first degree award at Softarg '92, Katowice, Poland
September, SuperMemo 6 receives a special award of the Polish Computer Science Society
December, SuperMemo 6 is awarded in the Product of the Year 1992 competition organized by PC Kurier, Poland
1993
January, releasing SuperMemo 7.0 for Windows, one of the first Polish Windows software products
March, releasing SuperMemo 5 as shareware
March, SuperMemo World displays its products at CeBIT '93
May, releasing AudioVisual SuperMemo 7.2 for Windows
August, releasing SuperMemo for Amiga
September, SuperMemo tops the chart of best Polish software applications for Amiga (Amiga Magazine)
September, SuperMemo 7 is awarded at Softarg
December, SuperMemo becomes the first ever Polish software reviewed in Byte International
December, SuperMemo 7 is awarded in Product of the Year 1993
1994
January, SuperMemo is voted 4-th most popular Polish software by readers of Polish PC World (behind anti-virus and word- processing products)
March, SuperMemo for Amiga is voted the Product of the Year 1993 among Polish software for Amiga by readers of Amiga Magazine
March, SuperMemo World displays SuperMemo 7.3 at CeBIT '94
March, SuperMemo is awarded for the best value/price ratio by the CENA/VYKON journal, Czech Republic
May, SuperMemo 7 is awarded a prestigious Gold Medal at Infosystem Computer Fair in Poznan
July, 10,000-th copy of SuperMemo has been sold
August, SuperMemo USA, Inc. publishes SuperMemo 7.4 on CD-ROM, including the audio release of Advanced English best-seller. This title becomes the first Polish Windows software title on CD-ROM ever
September, SuperMemo World is granted the special award of the fair's president at Softarg and receives a free display at Softarg 1995
September, SuperMemo World signs its first OEM bundling deal with JTT, second largest computer-maker in Poland
October, SuperMemo World publishes the European release of SuperMemo on CD-ROM
October, SuperMemo 7.2 tops the ranking of best-selling software sold on illegal software market, ahead of Microsoft Word 6.0 and Microsoft Works 3.0 (PC World Komputer, Vol. 11, 1994)
November, Economics of learning lays the theoretical foundations for SuperMemo 8
December, SuperMemo for Windows receives the Reader's Choice distinction from PC World Komputer (Vol. 12, 1994) by being voted second most popular Polish software in Poland and the most popular Polish software for Windows in Poland
1995
January, Borland’s Delphi 1.0 is chosen over Borland C++ and Visual C++ as the development language for SuperMemo 8.0
January, SuperMemo 6 is released as freeware
February, SuperMemo receives a positive review in the most prestigious European journal: German Chip
March, releasing SuperMemo for MacIntosh
March, SuperMemo Worlds displays its Multilingual SuperMemo 7.5 CD-ROM at CeBIT'95
April, SuperMemo World signs a comprehensive OEM deal with Optimus, the greatest computer-maker in Poland
May, 30,000-th copy of SuperMemo has been sold
September, five hundred beta-testers get their hands on a Pre-Release CD-ROM with the first hypermedia precursor of SuperMemo 8.0.
November, SuperMemo World is the first Polish company ever to display its products at Comdex in Las Vegas
1996
January, SuperMemo is voted the best Polish application by readers of PC World, Komputer
January, first SuperMemo hypermedia CD-ROM title is released: Video English (with Genius 1.0, early precursor of SuperMemo 8.0)
September, Cross Country hypermedia best-seller CD-ROM is released (with Genius 2.0, precursor of SuperMemo 8.0)
Septemer, precursor of SuperMemo 8, Genius 2.0, receives its first award as the hypermedia authoring tool at Softarg, Poland
October, 60,000 readers of CHIP in Poland receive a CD-ROM with the full version of the hypermedia authoring SuperMemo with a demo of Cross Country
November, first Polish multimedia encyclopedia CD-ROM is released together with hypermedia SuperMemo as an integrated tool for learning selected encyclopedic material
1997
January, Polish PWN Encyclopedia with SuperMemo is voted the most popular Polish software product by readers of PC Kurier
January, SuperMemo World, Polish vetaran of CeBIT and the first Polish company present at Comdex makes a strategic conversion towards Internet away from major software fairs
January, SuperMemo Web site is inaugurated (www.SuperMemo.com)
February, SuperMemo 8.0 enters beta-testing.
May, releasing SuperMemo 8.0 (first commercial title: Deine Chancen in Deutsch)
November, releasing Advanced English 97 with SuperMemo 8.3 - the best SuperMemo product ever
1998
January - SuperMemo 8 is chosen Product of the Year by journalists of PC Kurier, Poland (ahead of Internet Explorer 4.0PL!)