Behind the walls at Emerson High School in Oklahoma City, construction workers found old chalkboards with drawings and class lessons, written almost a century ago and in remarkable condition.
Century-Old Chalkboard Lessons Provide Glimpse Of 1917
100-year-old chalkboard drawings found in Oklahoma school
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Jacob McCleland KCUR - Kansas City news and NPR
Haunting chalkboard drawings, frozen in time for 100 years, discovered in Oklahoma school - The Washington Post
Jacob McCleland
Century-Old School Chalkboard Drawings Offer a History Lesson
100-year-old Chalkboard Drawings Found In Oklahoma School
1917 School Chalkboards Are a Rare Snapshot of History Frozen in Time
1917 School Chalkboards Are a Rare Snapshot of History Frozen in Time
100-year-old Chalkboard Drawings Found In Oklahoma School