7 Elul 5780 AM
Today, 3330 years ago, in the year 2450 AM, 10 of the 12 Meraglim died as a result of an epidemic in the desert.
The Meraglim came back from Canaan on the 8th Av. They returned to their brethren with negative information about the Holy Land. But taking into consideration that the Meragalim were the Nesi’im of the tribes, one may think that there is more to the picture. Indeed, this very day, the yahrzeit of the Mergalim, is being observed as a Taanis Tzaddikim.
Source: Tur, Orach Chayim, 580