Fatto generale: 5000 is the number of base pairs in the DNA of the simplest viruses.
Fatto matematico: 5000 is the largest number whose English name does not repeat any letters.
Trivia: 5000 is the number of base pairs in the DNA of the simplest viruses.
Data storica: September 8th is the day in 1727 that a barn fire during a puppet show in the village of Burwell in Cambridgeshire, England kills 78 people, many of whom are children.