In brief
Encarta was Microsoft's encyclopedia on CD-ROM, released in 1993. Microsoft did not write the text itself but licensed it from Funk & Wagnalls, after failing to reach an agreement with Britannica and World Book. The disc cost $395, fell to $99 by the end of 1993, and shipped bundled with computers. Britannica's revenue fell from $650 million to $325 million over 1990–1996, and in 1996 the company was sold to Jacob Safra for a fraction of its book value. In 2009 Microsoft shut Encarta down; in the week before 2009-01-23, Hitwise counted 97% of Americans' visits to online encyclopedias for Wikipedia and 1.27% for Encarta. The shutdown statement does not name Wikipedia. For 2026, the story matters as an example of paid corporate content that lost to free, open content.
How it started (the founders)
Encarta had no founders in the usual sense: it was a product of Microsoft's reference publishing division. According to Britannica's retelling, people at Microsoft were already talking about a digital encyclopedia in 1985 estimate. Microsoft tried without success to license the text of Britannica, then of World Book, and in the end found a willing partner in Funk & Wagnalls; the year of the talks with Britannica and the reason for the refusal are not named in the sources collected unverified.
Sources give the year of the license differently: 1989 (a contract for nonexclusive rights to the 29-volume encyclopedia) and 1992. The project, code-named "Gandalf," was put on hold in 1990 over doubts about its commercial sense and resumed in 1991 estimate. There is no primary document on the deal unverified.
The idea was a bet on an expensive product: Microsoft counted on $1,000–2,000 per disc, but by launch the market had settled at $395, and Encarta came out at that price in March 1993. Interestingly, Britannica stayed with the print model all the while: in 1993 it merely sold its own Compton's division for $57 million and released a corporate CD version at $2,100 for a three-year license for two workstations, while changing nothing for consumers.
Year-by-year timeline
- 1985: according to Britannica's retelling, Microsoft discusses a digital encyclopedia estimate
- 1989 / 1992: Microsoft's nonexclusive contract with Funk & Wagnalls; the year differs between sources estimate
- 1990–1991: the project is put on hold and resumed estimate
- 1993 (March): Encarta is released; retail price $395, $249 for schools estimate
- 1993 (end of the year): the price is $99, and the disc ships with computers; even cheaper for PC makers estimate
- 1993–1994: Britannica sells Compton's for $57 million; in 1994, 55,000 print sets are sold against 117,000 in 1990 estimate
- 1996: Microsoft claims a 59.1% share of retail dollars in the US electronic encyclopedia market, per PC Data estimate; Britannica's revenue is $325 million, and the company is sold to Safra fact
- 1998-05-11: Encarta Online: a free concise version with 16,000 articles and a paid library of 1 million articles at $6.95 a month fact
- 2000: according to a retelling, Encarta's peak; the full content is online for subscribers estimate
- 2009-01: Hitwise: Wikipedia 97%, Encarta 1.27% of Americans' visits to online encyclopedias fact
- 2009-03-30: Microsoft announces the shutdown; sales of Encarta Premium and Microsoft Student end by June fact
- 2009-10-31: the scheduled date for closing the sites (Japan: 2009-12-31); by 2009-12-31 the archived home page already reports that the site is closed estimate
Lesser-known but significant facts
- Britannica's decline began before Encarta. Britannica's revenue in the table of the Dartmouth case: $650 million (1990), $627 million, $586 million, $540 million (1993), $453 million, $405 million, $325 million (1996). Over 1990–1992, before Encarta came out, it fell by 10%, and by the end of 1993 by 17% estimate.
- In 1994 Britannica sold the disc separately for $995, and gave it away free with the print set. The print set cost the company $200–300, the CD $1.50. The company was protecting the expensive set, while Microsoft sold the disc as a mass-market product estimate.
- Encarta was made not by enthusiasts but by a team of 1,200 people. In 1997 Microsoft wrote of a team of 1,200 local editors and authors, five languages, and sales in 30 countries.
- The licensed text was weaker than the brand, but it did not get in the way of sales. The Dartmouth case states plainly that Encarta became the best-selling multimedia encyclopedia even though Funk & Wagnalls did not have a reputation like Britannica's.
Legend vs. the record
- Legend: Encarta stayed on discs and slept through the internet. The record: on 1998-05-11 Microsoft opened Encarta Online, a free concise version with 16,000 articles and a paid library of a million articles at $6.95 a month, almost three years before the launch of Wikipedia on 2001-01-15. The "free plus subscription" model did not help: in January 2009 Encarta had 1.27% of visits. Verdict: false; Encarta went online before Wikipedia.
- Legend: Microsoft shut Encarta down because of Wikipedia, and said so in its statement. The record: the Microsoft quote says that the category of the traditional encyclopedia and reference materials had changed, and Wikipedia is not named. The link between the shutdown and Wikipedia is a conclusion drawn by the press from the Hitwise data. Verdict: plausible, but not a statement by the company.
- Legend: Encarta was the first to kill Britannica. The record: Britannica's revenue had been falling since 1990, three years before Encarta came out. After Encarta's release and the bundling with PCs the decline sped up, and an academic paper links the 1996 sale to competition from Encarta. Britannica did not disappear: Safra bought it, and it kept publishing. Verdict: it sped the decline up but did not start it; "killed" is an exaggeration estimate.
- Legend: Encarta cost $49.95 from the start. The record: the Stern teaching case gives a starting price of $49.95, but Rumpus and the Britannica reference entry speak of $395 with a later cut to $99. Verdict: $395 in 1993, $99 by the end of the year; $49.95 is an unconfirmed figure estimate.
The first growth lever
The main lever was price and channel. Microsoft launched at $395, but Compton's cut its price right away, and by the end of 1993 Encarta was selling for $99, 75% lower. According to retellings, bundling mattered even more: the disc was sold to computer makers below the retail price and put in the box with the computer estimate. The result, as Dartmouth describes it: Encarta soon became the best seller. For 1996 Microsoft claimed 59.1% of retail dollars in the US electronic encyclopedia market, per PC Data. The number of copies sold is not reliably known: 350,000 for 1993 is only a retelling with no source rumor.
The paired story
The pair is Wikipedia (history-wikipedia): a corporation's paid encyclopedia and a free volunteer one.
- The shared plot. Both answer the question of who pays for knowledge: for Encarta it was the buyer of the disc, then the subscriber; for Wikipedia, first Bomis, then donors.
- The shared rival. Both were measured against Britannica: Encarta undercut Britannica's price and took the mass market from it, and in 2005 Nature found 123 errors in Britannica and 162 in Wikipedia across 42 articles.
- The dates. Encarta launched in 1993, Wikipedia on 2001-01-15; Encarta was shut down in 2009, that is, eight years after Wikipedia launched.
- The contrast in money. In the end Encarta was sold as an online product for $22.95 estimate; Wikipedia sells neither advertising nor subscriptions, and its foundation's revenue grew from $1.51M (FY2006) to $185.4M (FY2024).
- What cannot be compared directly. Microsoft did not disclose Encarta's revenue as a separate line unverified, so a comparison in money is one-sided.
Parallels today (projects from the catalog)
- The Eureka Database (
the-eureka-database): a paid idea library with a free/ideaspage, the same scheme as Encarta Online in 1998 (a free slice plus a paid full catalog). The difference of era: Eureka has no free competitor on the scale of Wikipedia, but each idea can still be found in open threads. view this project's dossier → - Micro SaaS Examples (
microsaas-idea-directory-threads): a directory of 470 cards with paid listings, an open reference that gathers traffic for free and takes money from those listed; this is a model Encarta did not use. view this project's dossier → - Software Ideas (
softwareideas-io): a paid newsletter with a ready-made study of one idea, paid content that sells on depth rather than reach, much as Encarta tried to sell itself on being vetted. view this project's dossier →
What a builder can take from this in 2026
- If your content comes down to reference, a free open competitor will win on reach. In 2009 Encarta had 1.27% of visits against 97%. Sell not reference material but what cannot be copied: data, a cut for your segment, a ready-made conclusion.
- A free slice is not enough if the competitor is free in its entirety. Encarta gave away 16,000 articles, and Wikipedia everything. The free layer should lead to the paid one, not compete with it on the same content.
- Distribution through partners. Encarta shipped in the box with PCs estimate, and for 1996 Microsoft claimed 59.1% of retail dollars in the US electronic encyclopedia market. Look for a channel where your product ships in someone else's box.
- A license for someone else's content speeds up the launch but builds no moat. Funk & Wagnalls gave Encarta its text without Encarta having authors of its own, and the rights, according to Britannica's retelling, were nonexclusive estimate. Anything you license without exclusivity a competitor can buy too.
- A cheap digital product breaks the price of an expensive physical one. Britannica's standalone disc cost $995 in 1994, about $200 in 1995, and $200 in 1996, while the print set kept losing sales. If your price is an order of magnitude lower, the competitor is left with a choice: lose the market or move to your price.
Discrepancies and what we could not verify
- Launch price: $395 versus $49.95 estimate.
- Year of the F&W license: 1989 versus 1992 estimate.
- Britannica's print sales: 117,000 → 55,000 (1994) versus 120,000 → 40,000 (1996) estimate.
- Encarta copies sold: 350,000 for 1993, with no source rumor.
- The 2000 peak: Rumpus only estimate.
- The year of and reason for Britannica's refusal to license its text to Microsoft: not found unverified.
- The 59.1% share: PC Data figures from a Microsoft press release; the PC Data figures themselves were not checked estimate.
- Not verified: Encarta's revenue and profit, the headcount, the exact release date (March 22, 1993, only from Spanish-language search results), the terms of the F&W contract, the original NYT article of 2009-03-30, the actual date the sites were switched off unverified.
- Some entries (Britannica, TechSpot) are based on search-result snippets; $395 and March 1993 are confirmed separately.
Sources (primary first)
- https://news.microsoft.com/source/1997/03/03/microsoft-encarta-sets-the-world-standard-for-electronic-encyclopedias/ — Microsoft press release, 1997
- https://news.microsoft.com/source/1998/05/11/microsofts-new-and-improved-encarta-online-offers-exciting-resources-for-teachers-and-students/ — Microsoft press release, 1998
- https://www.theregister.com/2009/03/30/microsoft_kills_msn_encarta/ — the shutdown statement, 2009
- https://www.networkworld.com/article/797036/lan-wan-hitwise-wikipedia-squashes-encyclopedia-rivals.html — Hitwise, 2009
- https://mba.tuck.dartmouth.edu/pages/faculty/chris.trimble/osi/downloads/20008_EncyBrit_B.pdf — Dartmouth Tuck case on Britannica, 2002
- https://pages.stern.nyu.edu/lcabral/teaching/britannica.pdf — NYU Stern case, 2002
- https://therumpus.net/2009/06/30/the-story-of-encarta/ — an essay quoting the NYT, 2009
- https://www.eweek.com/news/microsoft-encarta-will-shut-down/ — eWeek, 2009 (did not open; per search results)
- https://legacy.earlham.edu/~peters/fos/2009/04/microsoft-folds-up-encarta.html — a retelling of the NYT, 2009 (did not open; per search results)
- https://dash.harvard.edu/entities/publication/41f6d1c6-eb77-4458-80d0-9ce3cbe896ca — Greenstein, 2017 (did not open; per search results)
- https://www.britannica.com/topic/Encarta, https://www.techspot.com/article/2672-microsoft-encarta/, https://www.pocket-lint.com/apps/news/114737-encyclopaedia-britannica-print-edition-defeated-by-digital — did not open; per search results
- https://en.wikipedia.org/wiki/Encarta — a pointer only (did not open; per search results)
- http://web.archive.org/web/2005/http://features.slashdot.org/article.pl?sid=05/04/18/164213 and https://web.archive.org/web/2007/http://upload.wikimedia.org/wikipedia/foundation/2/28/Wikimedia_2006_fs.pdf — Sanger's memoirs and the Wikimedia Foundation's financial statements (for "The paired story" section)