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The initial creation of visicalc happened at this time.
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Visicalc enters legal battles with the Lotus Development corporation, losing their battle in 1983.
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Lotus acquires Visicorp/SoftArts and Visicalc is discontinued, with Lotus 1-2-3 now becoming the major spreadsheet software.
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Although developed in 1984-85, microsoft excel took off in around 1987 and became Microsoft's flagship product and the definitive industry standard in spreadsheet software.
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Lotus is finally acquired by IBM and excel becomes the leader in market share (with Lotus-1-2-3 becoming one of the most sold pieces of software of all time).
A list shows items. A timeline shows sequence.
Use Timetoast to make dates, milestones, and turning points easier to understand in a clear visual format. Timetoast is a timeline maker for work, school, research, and stories.