100% verified The same day, three eras.
12 August
Contemporary era
1981
Launch of the IBM PC
On 12 August 1981, IBM launched its personal computer, the IBM PC.
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- Encyclopaedia IBM PC (Wikipedia) Wikipedia. 4/5
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Contemporary era
1851
Singer sewing machine patent
On 12 August 1851, Isaac Singer patented his sewing machine.
Sources and verification (1)
- Encyclopaedia Isaac Singer (Wikipedia) Wikipedia. 4/5
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From the Middle Ages to the Enlightenment
1099
Battle of Ascalon
On 12 August 1099, the Battle of Ascalon concluded the First Crusade.
Sources and verification (1)
- Encyclopaedia Bataille d'Ascalon (Wikipedia) Wikipedia. 4/5