world Wide Web

80 Years of City Partnership between Leiden and Oxford (1946)

Written in: Dutch • Randy Koo • 6 February 2026

In 2026, the city twinning between Leiden and Oxford will celebrate its 80th anniversary. The Leiden-Oxford Committee has been organizing cultural and sporting exchanges between the cities of Leiden and Oxford since 1946. This committee strengthens the city twinning – one of the oldest in the world –...

30 years of the internet (1991 – 2021)

Written in: Dutch • Randy Koo • 23 August 2021

On August 6, 2021, the World Wide Web (www) turns 30 years old. Without internet pages, you would still have to go to the library to look up information about your favorite subject. And without a browser or...

Vincent Tromer over North Sea shells: So don't buy it.

Written in: Dutch

Peter over Delta Works: The Netherlands and water with climate adaptation: Thank you very much for the nice explanation of the design.

Written in: Dutch

Lars over Delft Blue Ceramic stamp a 'deception stamp': Now just get those blueprints out of the catalog..

Written in: Dutch

Erik Boeré over Delft Blue Ceramic stamp a 'deception stamp': The best solution is probably to ignore the ceramics stamp altogether. Fortunately, as the NVPH/Catalog Committee, we already have…

Written in: Dutch

Yvonne Kruse over The piss-pots of Tilburg: What a nice article, Willem!

Written in: Dutch

Willem over Stamp Day 2026: “I would like to know . . .?”: The Delta stamps can already be found on Marktplaats. A beautiful design! In my opinion, that is an example of how collectors want it.

Written in: Dutch