{"slug": "united-states-postal-service", "label": "United States Postal Service", "wikipedia": "https://en.wikipedia.org/wiki/United_States_Postal_Service", "wikidata": "https://www.wikidata.org/wiki/Q668687", "qid": "Q668687", "description": "independent agency of the U.S. federal government responsible for providing postal service", "entries": 8, "years": 7, "span": [1792, 1986], "span_label": ["1792 CE", "1986 CE"], "topics": [{"title": "Technology & Infrastructure", "count": 5}, {"title": "Health & Medicine", "count": 2}, {"title": "Geopolitics & Diplomacy", "count": 1}], "also_known_as": ["Media mail", "United States Post Office"], "related": [{"slug": "new-york-city", "label": "New York City", "shared": 2}, {"slug": "philadelphia", "label": "Philadelphia", "shared": 2}, {"slug": "washington-d-c", "label": "Washington, D.C.", "shared": 2}, {"slug": "george-washington", "label": "George Washington", "shared": 1}], "items": [{"year": 1792, "year_label": "1792 CE", "section": "Geopolitics & Diplomacy", "date": "February 20", "text": "February 20 – The Postal Service Act, establishing the United States Post Office Department, is signed by President George Washington.", "cite": {"url": "https://en.wikipedia.org/w/index.php?oldid=1359853540#January–March", "title": "1792", "revid": 1359853540, "section": "Events › January–March"}}, {"year": 1825, "year_label": "1825 CE", "section": "Technology & Infrastructure", "date": null, "text": "The United States Postal Service starts a dead letter office.", "cite": {"url": "https://en.wikipedia.org/w/index.php?oldid=1341744335#Date_unknown", "title": "1825", "revid": 1341744335, "section": "Events › Date unknown"}}, {"year": 1918, "year_label": "1918 CE", "section": "Technology & Infrastructure", "date": "May 15", "text": "May 15 – The United States Post Office Department begins the world's third regular airmail service, between New York City, Philadelphia and Washington, D.C.", "cite": {"url": "https://en.wikipedia.org/w/index.php?oldid=1373520023#May", "title": "1918", "revid": 1373520023, "section": "Events › May"}}, {"year": 1918, "year_label": "1918 CE", "section": "Technology & Infrastructure", "date": "May 15", "text": "May 15 – The United States Post Office Department (later renamed the United States Postal Service) begins the first regular airmail service in the world (between New York City, Philadelphia and Washington, DC).", "cite": {"url": "https://en.wikipedia.org/w/index.php?oldid=1359276216#April–June", "title": "1918 in the United States", "revid": 1359276216, "section": "Events › April–June"}}, {"year": 1920, "year_label": "1920 CE", "section": "Health & Medicine", "date": "June 13", "text": "June 13 – The United States Post Office Department rules that children may not be sent via parcel post.", "cite": {"url": "https://en.wikipedia.org/w/index.php?oldid=1369258210#June", "title": "1920", "revid": 1369258210, "section": "Events › June"}}, {"year": 1959, "year_label": "1959 CE", "section": "Technology & Infrastructure", "date": "June 8", "text": "June 8 – The USS Barbero and United States Postal Service attempt the delivery of mail via Missile Mail.", "cite": {"url": "https://en.wikipedia.org/w/index.php?oldid=1370221732#June", "title": "1959", "revid": 1370221732, "section": "Events › June"}}, {"year": 1963, "year_label": "1963 CE", "section": "Technology & Infrastructure", "date": "July 1", "text": "July 1 – ZIP codes are introduced by the United States Postal Service.", "cite": {"url": "https://en.wikipedia.org/w/index.php?oldid=1370539540#July", "title": "1963", "revid": 1370539540, "section": "Events › July"}}, {"year": 1986, "year_label": "1986 CE", "section": "Health & Medicine", "date": "August 20", "text": "August 20 – In Edmond, Oklahoma, United States Postal Service employee Patrick Sherrill guns down 14 of his coworkers before committing suicide.", "cite": {"url": "https://en.wikipedia.org/w/index.php?oldid=1373510075#August", "title": "1986", "revid": 1373510075, "section": "Events › August"}}]}