A starter that rode west in a covered wagon in 1847 still rises bread today, mailed free by strangers who never met the man who carried it.
Carl Griffith kept the culture alive for seventy years after inheriting it as a boy in Oregon in 1930.
After he died in 2000, volunteers formed Carl's Friends and have since mailed out over 100,000 starts to bakers worldwide, free for a stamped envelope.
This is living history you can taste. Find bakers keeping tradition alive on Localize.