Petrus Johannes Blok
Dutch historian
Died when: 74 years 287 days (897 months)Star Sign: Capricorn
![Petrus Johannes Blok](http://commons.wikimedia.org/wiki/Special:FilePath/PJBlok.jpg?width=300)
Petrus Johannes Blok (10 January 1855, in Den Helder – 24 October 1929, in Leiden) was a Dutch historian.
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