{"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": 7, "years": 7, "span": [1792, 1986], "span_label": ["1792 CE", "1986 CE"], "topics": [{"title": "Technology & Infrastructure", "count": 4}, {"title": "Health & Medicine", "count": 2}, {"title": "Geopolitics & Diplomacy", "count": 1}], "related": [{"slug": "new-york-city", "label": "New York City", "shared": 1}, {"slug": "philadelphia", "label": "Philadelphia", "shared": 1}, {"slug": "washington-d-c", "label": "Washington, D.C.", "shared": 1}, {"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": 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"}}]}