@NationalHistory Day students explored that topic in exhibits, and are sharing their exhibits on the floor.
![A young woman shows of her National History Day exhibit about the Berlin Wall.](https://pbs.twimg.com/media/DfmSqzLW0AE3qIi.jpg)
![Mallory Warner shows off artifacts from the Medical Science collection with other staff in the background.](https://pbs.twimg.com/media/DfmS4tJX4AA_A1f.jpg)
![An image from Smithsonian Libraries showing a Printing office during the Civil War](https://pbs.twimg.com/media/DfmUE3rXcAAtPtL.jpg)
You can read what the soldiers were printing here: s.si.edu/2uFbVtQ
![Elements of a survival kit including Hersey's Tropical Chocolate](https://pbs.twimg.com/media/DfmXC3mW4AAkbaj.jpg)
![A family with tags on them moving to a concentration camp.](https://pbs.twimg.com/media/DfmYD-fXkAEd4n8.jpg)
![Robert Wada's beige Boy Scout troop uniform.](https://pbs.twimg.com/media/DfmYoVAXkAIjgB1.jpg)
![A detail of the uniform showing Poston 100 on it.](https://pbs.twimg.com/media/DfmZMuVX0AA_LUs.jpg)
![Debbie Schaefer-Jacobs talks to the public about education history, surrounded by artifacts.](https://pbs.twimg.com/media/DfmaqZTWAAM-NVb.jpg)
![Soldiers escort a woman into a school building.](https://pbs.twimg.com/media/DfmbmpWXkAAXeqT.jpg)
![A typewritten suspension note for Minnejean Brown.](https://pbs.twimg.com/media/DfmcpTvXcAAzxn-.jpg)
![A Curb Cut, a chunk of cement curb, on the table with other artifacts around it.](https://pbs.twimg.com/media/DfmeBQUXUAEt53C.jpg)
![A detail shot of the curb cut](https://pbs.twimg.com/media/Dfmetk7X4AAxXVr.jpg)
![A chunk of cement with rugged edges](https://pbs.twimg.com/media/DfmevvAW4AEMKcO.jpg)
![Curator of Philanthropy Amanda Moniz talks to two members of the public.](https://pbs.twimg.com/media/DfmfcrEWAAAh6fg.jpg)
In the 1970s, concerned environmentalists realized birds habitats were at risk. They formed groups like bluebird societies to fight for them. s.si.edu/Bluebirds
![A nest box made of wood and wire](https://pbs.twimg.com/media/DfmfxM2W4AALT8d.jpg)
![You can see moss growing on this close up detail of a nest box.](https://pbs.twimg.com/media/Dfmghp5XkAIkFrc.jpg)
![Curator Hal Wallace explains a bit of tech history.](https://pbs.twimg.com/media/DfmhnJAX0AA9CL1.jpg)
![A candlestick phone with the patented](https://pbs.twimg.com/media/DfmjqnnWAAAfIyU.jpg)
![A sign that reads](https://pbs.twimg.com/media/DfmkdOdX0AE61mc.jpg)
![Curator Rachel Anderson explains smallpox vaccinations to the public.](https://pbs.twimg.com/media/Dfmk1FRXUAAHkDw.jpg)
Want more incredible stories about objects?
👩🏽💻👨🏿💻Check out our blog: americanhistory.si.edu/blog
🕺🏻💃🏾Local? Join us for #AmericaNowSI, where you can see objects out of storage yourself (and much more!): americanow.si.edu
![A curator shows off artifacts](https://pbs.twimg.com/media/Dfmn0oCX4AEshdW.jpg)
![Medical artifacts](https://pbs.twimg.com/media/Dfmn0oAWkAYdg1T.jpg)
![Interns talk to the public about artifacts](https://pbs.twimg.com/media/Dfmn0oAXcAAtbDJ.jpg)