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William Paca, Deliberator and Declaration Signer | In Custodia Legis
https://blogs.loc.gov/law/2026/04/william-paca-deliberator-and-declaration-signer/

Progressive Era Reforms: A New Primary Source Set for Educators | Teaching with the Library
https://blogs.loc.gov/teachers/2026/04/progressive-era-reforms-a-new-primary-source-set-for-educators/

Knit your bit! | Headlines & Heroes
https://blogs.loc.gov/headlinesandheroes/2026/04/knit-your-bit/

Pressing the Past: Materials, Markets, and Meaning | 4 Corners of the World
https://blogs.loc.gov/international-collections/2026/04/pressing-the-past-materials-markets-and-meaning/

Softee Man and the Pete Welding Collection: Caught My Eye | Folklife Today
https://blogs.loc.gov/folklife/2026/04/softee-man-and-the-pete-welding-collection-caught-my-eye/

Relentless Curiosity: An Interview with Seth Langer | The Signal
https://blogs.loc.gov/thesignal/2026/04/relentless-curiosity-an-interview-with-seth-langer/

Meet Mary A. Hamilton: Restoring a Diarist’s Identity | Unfolding History
https://blogs.loc.gov/manuscripts/2026/04/meet-mary-a-hamilton-restoring-a-diarists-identity/

Celebrating National Library Week and the Card Catalog | Teaching with the Library
https://blogs.loc.gov/teachers/2026/04/celebrating-national-library-week-and-the-card-catalog/

Library of Congress Celebrates National Library Week with Card Catalog Kiosks Across the Country
https://newsroom.loc.gov/news/library-of-congress-celebrates-national-library-week-with-card-catalog-kiosks-across-the-country/s/6ab477da-be51-4109-8984-e7d435afc055

April 18, 2026 - April 19, 2026
U.S. Air Force Thunderbirds: SUN 'n FUN 2026
Lakeland, FL
https://www.airforce.com/thunderbirds/schedule

April 18, 2026 - April 19, 2026
Holloman Air Force Base 2026 Legacy of Liberty Air Show
Alamogordo, NM
https://www.holloman.af.mil/Legacy-of-Liberty-Air-Show/

April 18, 2026 - April 19, 2026
U.S. Navy Blue Angels: Wings Over South Texas
NAS Kingsville, TX
https://www.blueangels.navy.mil/assets/docs/schedules/show-2026.pdf
https://www.wingsoversouthtexas.com/

April 18, 2026 - April 19, 2026
Spring Civil War Encampment
Fort Scott National Historic Site 
https://www.nps.gov/planyourvisit/event-details.htm?id=8CC598FF-9F81-AEA8-E53608366AE389E4

April 18, 2026 - April 24, 2026
The Aspen Executive Seminar - April 2026
Aspen Institute
https://www.aspeninstitute.org/events/aspen-executive-seminar-on-leadership-values-and-the-good-society-april-2026/

APRIL 18, 1861
Telegram Announcing the Surrender of Fort Sumter (1861)
National Archives
https://www.archives.gov/milestone-documents/telegram-announcing-the-surrender-of-fort-sumter

April 18, 2026 
Thunder Over Louisville 
Louisville, KY
https://thunderoverlouisville.org/

April 18, 2026
2026 World Amateur Radio Day is April 18
https://www.iaru.org/on-the-air/world-amateur-radio-day/
https://www.arrl.org/world-amateur-radio-day
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