<img width="640" height="802" src="http://www.cooperhewitt.org/wp-content/uploads/2017/04/95007_6b2bca80209256ff_b1-700x877.jpg" class="attachment-large size-large wp-post-image" alt="" style="display: block; margin-bottom: 5px; clear:both;max-width: 100%;" srcset="http://uh8yh30l48rpize52xh0q1o6i.wpengine.netdna-cdn.com/wp-content/uploads/2017/04/95007_6b2bca80209256ff_b1-700x877.jpg 700w, http://uh8yh30l48rpize52xh0q1o6i.wpengine.netdna-cdn.com/wp-content/uploads/2017/04/95007_6b2bca80209256ff_b1-239x300.jpg 239w, http://uh8yh30l48rpize52xh0q1o6i.wpengine.netdna-cdn.com/wp-content/uploads/2017/04/95007_6b2bca80209256ff_b1-170x213.jpg 170w, http://uh8yh30l48rpize52xh0q1o6i.wpengine.netdna-cdn.com/wp-content/uploads/2017/04/95007_6b2bca80209256ff_b1.jpg 817w" sizes="(max-width: 640px) 100vw, 640px" data-attachment-id="24720" data-permalink="http://www.cooperhewitt.org/2017/04/30/snapshots-of-the-american-teenager/95007_6b2bca80209256ff_b1/" data-orig-file="http://www.cooperhewitt.org/wp-content/uploads/2017/04/95007_6b2bca80209256ff_b1.jpg" data-orig-size="817,1024" data-comments-opened="1" data-image-meta="{"aperture":"16","credit":"Matt Flynn, Photographer","camera":"Hasselblad CF-39MS","caption":"","created_timestamp":"1412180524","copyright":"Image may not be reproduced without authorization of the Cooper Hewitt, Smithsonian Design Museum","focal_length":"80","iso":"50","shutter_speed":"0.00555555555556","title":"","orientation":"1"}" data-image-title="95007_6b2bca80209256ff_b[1]" data-image-description="" data-medium-file="http://www.cooperhewitt.org/wp-content/uploads/2017/04/95007_6b2bca80209256ff_b1-239x300.jpg" data-large-file="http://www.cooperhewitt.org/wp-content/uploads/2017/04/95007_6b2bca80209256ff_b1-700x877.jpg" />Can anyone today imagine a time when there was no such thing as the “teenager”? Surprisingly, it wasn’t that long ago that the “teenage years” were not considered a distinct stage of life. The words “teenage” and “teenager” were not invented until the 1920s, and it was only around this time that people noticed that...
