11Generational Paper Suppliers
For seven consecutive generations, the Crane family has exclusively supplied the paper used for printing the U.S. dollar.
12Unchanging Y Chromosomes
While female X chromosomes undergo mixing and reshuffling, Y chromosomes are passed down unchanged, resulting in successive generations of males sharing identical Y chromosomes, from grandfather to father to son.
13Ni‘ihau Family Legacy
Ni'ihau Island in Hawaii was acquired through a private purchase for $10,000 in 1864 and has remained within the family ever since. Rather than exploiting its resources for profit, the owners maintain its seclusion and protection. Over 150 natives live on the island.
14Relic of the Holy Prepuce
The Holy Prepuce, purportedly Jesus's foreskin, has been passed down and revered as a sacred relic through the ages. As recently as 1983, it was paraded through the streets of an Italian village.
15Centuries of Hotel Ownership
The same family has been in charge of running Nishiyama Onsen Keiunkan, a Japanese hotel, for more than 52 generations, a remarkable legacy that has persisted to this day.
16Inherited Memories
New research suggests that memories can be inherited across generations through genetic switches, potentially explaining the development of phobias.
17Sanson Family Executioners
For six generations, spanning from 1688 to 1840, members of the Sanson family held the position of executioner in Paris. Charles-Henri Sanson alone conducted 2,918 executions, including those of Louis XVI and Marie-Antoinette.
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18Honoring Military Graves
Local families in the Netherlands and Belgium adopt US military gravesites, honoring them with visits and floral tributes, a duty passed down through generations.
19Antimony Pills' Legacy
In the 1700s, pills made out of the element antimony were taken orally as a laxative for constipated bowels. Once they passed through, they were retrieved from the excrement to be used again. Some families passed down the same pill from one generation to the next.
20Muslim Custodianship
Two Muslim families have tended to the Church of the Holy Sepulchre for generations, a sacred site where many believe Jesus Christ was crucified and buried.
