Astro geolocation
52.93333333, 4.75
Location reference Astro Chart
Petrus Johannes Blok (10 January 1855, in Den Helder – 24 October 1929, in Leiden) was a Dutch historian.
Location name
Den_Helder
astro_wikipedia_url
astro_wikipedia_idname
Petrus_Johannes_Blok
a_location_idunic
Bernard_Zweers/Petrus_Johannes_Blok