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The Smithsonian at 175

engraving of the Smithsonian Castle

SI 175

2021 represents a significant chapter in the Smithsonian’s history—its 175th anniversary. On August 10, 1846, the U.S. Senate passed the act organizing the Smithsonian Institution, which was signed into law by President James K. Polk. As we commemorate this milestone, it is important to not only look back at where we have been, but also look ahead to what is on the horizon. Join us in person or online this coming year for a series of events that explore our history and imagine the Institution’s next 175 years.

Present History Activity Guide

Present History

As the Smithsonian celebrates its 175th anniversary, lifelong learners and their families can enjoy highlights of significant, game-changing milestones that inspire, excite, and offer moments of reflection. Through stories of innovation, movements, inspiration, and reflection in an ongoing quest to better understand the American experience, readers are introduced to a sampling of the breadth and depth of the Smithsonian. Games throughout the guide offer opportunities to test your knowledge, learn something new, and connect with family and friends.

Download Present History »

Featured Exhibition

Futures exhibition illustration

To celebrate the Smithsonian’s 175th anniversary in 2021, the Arts and Industries Building reopened for the first time in two decades with FUTURES, the first building-wide exploration of the future on the National Mall.

On view November 21, 2021, through July 6, 2022, FUTURES featured a vast array of interactives, artworks, tech, and ideas that were glimpses into humanity’s next chapter.

From the Collections

Smithsonian Guard Force, c. 1900

View of Castle through African Art Museum Window

Muhammad Ali, Ellen Roney Hughes, and Carl Scheele in the National Museum of History and Technology

Archives of American Art

Opening of "1876: A Centennial Exhibition"

Mary Agnes Chase Collecting Plants, Brazil

Owls in the Castle Tower

American Flag and New Smithsonian Flag

Camera Used by Smithsonian Astrophysical Observatory

National Air and Space Museum Groundbreaking

Smithsonian Centennial Exhibit, Natural History Building

Opening Ceremonies for the 150th Birthday Party on the Mall

Star-Spangled Banner, NMHT

Dr. Charles Greeley Abbot's 100th Birthday Celebration

Secretary I. Michael Heyman with Birthday Cake in Shape of SIB

National Air and Space Museum Exhibits Installation

Richard Kurin Preparing Mall for Festival of American Folklife

Paleontology Exhibit, Stegosaurus- Armored Dinosaur

JoGayle Howard with Clouded Leopard Cub

Inedible Renwick Birthday Cake

Group Portrait of Torch Photo Contest Winners

SI Staff Use Smithsonian Metro Station Farecard Vending Machines

Smithsonian Geologists, 1886

Smithsonian Staff

Andy Warhol Touring the Castle Collection

SEEC Children on a Field Trip

Architectural History of the the National Museum of African American History and Culture, 2012

First Ladies Hall, NMHT

Astrophysical Observatory in South Yard

Dinosaur Hall

Installation of Steam Locomotive in NMHT

Exterior of Smithsonian Building Completed

Opening of National Air and Space Museum (NASM)

Harvard Observatory Team, Photographing Eclipse

Art Room in Smithsonian Institution Building (1903)


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