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Case file

Tom Kremer

Wikipedia's first sentence called it “game inventor and marketer who acquired the rights to market the rubik's cube”. Today it says “games designer”.
Measured, not asserted. Every count, date and revision on this page was taken from Wikipedia's own history and checked against the live article. The words quoted are theirs.
Machine-checked against the full current article on 2026-08-03.
We saved snapshots of this article over twenty years; you are reading the 2020 one. Red dashes: removed from Wikipedia since. Pale dots: rewritten; the numbered note shows what it says now. 1 tap a number or a side note to jump between them
The opening as it read in 2020

Tom Kremer Thomas Kremer (26 May 1930 – 24 June 2017) was a game inventor and marketer who acquired the rights to market the Rubik's Cube . Tom Kremer was a games designer, entrepreneur and publisher, best known for his discovery and popularisation of the Rubik’s Cube. As an octogenerian he had founded the publishing house, Notting Hill Editions, with the aim of reinvigorating the lost art of the essay.1 Kremer was born in Transylvania in 1930, the son of an army officer. As a teenager he was imprisoned at the Bergen-Belsen concentration camp, finding freedom again on its liberation in April 1945. Travelling to Israel he joined the fight for the fledgling country’s independence, gained in 1948. Following studies in philosophy at Edinburgh University, where he met his wife-to-be, he carried out post-graduate research at the Sorbonne. Kremer had been living in England and working in games design since the 1960s when he visited a trade show in Germany and saw the Rubik’s Cube for the first time in 1979. His son David recalled: “The cube wasn’t a big sensation at the Nuremberg toy fair: it was just a small thing in a backwater section at this huge event.” Kremer licensed the design to the Ideal Toy Company, which by 1983 had already sold some 300m of the fiendishly complicated 3D puzzle. The Cube’s worldwide success came, he said, because it “challenges you with simplicity. You can handle it, and yet it has enormous hidden complexity.” But it also became a victim of its own success, as his son explained: “Everybody had one. The cube went from world’s greatest fad to zero: there were thousands piled up in warehouses.” Kremer later reacquired the license, allowing him to introduce it to new generations of puzzlers. Kremer was a cofounder of Winning Moves Games and later Chairman of the Board, while cofounder Phil Orbanes served as President. It was while serving at Winning Moves that Kremer was able to reacquire the Rubik's Cube in 2000.2

This is Wikipedia's own text, saved in our repository. Their copy of it is revision 937437647.
Today
Wikipedia's first sentence called it “game inventor and marketer who acquired the rights to market the rubik's cube”. Today it says “games designer”. Read the current article and compare.
2020Oct '232025
Counts in the opening at each snapshot. Green: the word gained ground. Red: it was cut. Grey: no change.

What Wikipedia says this is

Every article opens by defining its subject. This one was redefined since 2020, and today's defining sentence is their current revision.

Then

game inventor and marketer who acquired the rights to market the rubik's cube

Now

games designer

Struck red text is no longer in the article; dotted amber text was rewritten. Every revision id links to Wikipedia's copy; the text shown is our own saved copy. Data: /data. Wikipedia text is CC BY-SA; quoted for the record; not affiliated with Wikipedia.

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