https://seamusdubhghaill.com/2026/10/04/death-of-christopher-colles-irish-american-engineer-surveyor-inventor/seamus dubhghaillen2026-10-04T11:00:00+00:00Death of Christopher Colles, Irish American Engineer, Surveyor & InventorDublin, New York City, Engineer, Infrastructure, Irish Americans, United States, Mathematics, American Revolutionary War, Engineering, Thirteen Colonies, Surveying, Cartography, Water Supply, New York (state), Economic Development, Manhattan (New York borough), Christopher Colles, Metropolitan Museum of Art (New York City), Education, Water Supply Network, Aqueduct (water supply), Canal, St. Paul’s Chapel (Manhattan), Financial District (Manhattan), James Frothingham, Urban Planninghttps://seamusdubhghaill.com/2026/10/03/ireland-becomes-a-member-of-unesco/seamus dubhghaillen2026-10-03T11:00:00+00:00Ireland Becomes a Member of UNESCOParis, UNESCO, Science, Education, Culture, Global Education, National Commissions for UNESCO, UNESCO General Conference, UNESCO Executive Board, Tentative List of World Heritage Sites, Sustainable Development, Gender Equality, Intercultural Dialogue