![[Detail] Gathering at the school house for a Fourth of July celebration : Osnabrock, North Dakota.](../images/header_science.jpg)
[Detail] Gathering at the school house: Osnabrock, North Dakota. 
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Learn about the early recording efforts of Emile Berliner, Bell’s experiments with the telephone, early aviation, and the history of household technology through presentations and primary source images, notebooks and letters. Study early environmental movements and photographs.
Last Updated: 06/29/2009