Inventor Thomas Edison and industrialist Henry Ford were famous best friends. They'd go on frequent camping trips together, and bought houses next door to each other in Florida; when Edison, his health waning, was confined to a wheelchair, Ford bought one too, so they could race each other. When Edison, who was older than Ford by more than a decade, realized he was dying, he decided to leave his best friend a memorable gift: a test tube containing his final breath.

In a recent video, Dylan Thuras of Atlas Obscura tells the full story of Edison’s last breath (which is now housed in the Henry Ford Museum in Michigan), and the strangely beautiful friendship between two of history’s most famous titans of industry. Check it out above.

[h/t: Atlas Obscura]

Banner image credit: Atlas Obscura, YouTube