Portal:Ireland/Did you know/8

…that David Feldman, an Irish philatelist now based in Geneva, auctioned the world's most expensive postage stamp, the Swedish Treskilling Yellow for 2.5 million Swiss francs in 1996?
...that Jonathan Swift called his predecessor "that rascal Dean Jones" because he made such bad property leases whilst Dean of St. Patrick's Cathedral in Dublin?
...that the Mount Sandel Mesolithic site in Coleraine, County Londonderry is the oldest archaeological site in Ireland?
...that Wellington Testimonial in the Phoenix Park, Dublin, is the largest obelisk in Europe?