On the 12th of the month of Nissan in the second year of the exodus from Egypt, Moshe commanded to make the Pesach in its appointed time on the 14th of the month [(this is year 2449)]. In the second month, which is the 1st of Iyar, it was said 'Take a census' in Parshat Bamidbar, and it was done. On the 14th of Iyar, the second Pesach was made.

Thus they stayed in the Sinai desert for 13 months and 20 days. On the 2nd of Iyar the cloud lifted, and they journeyed from the Sinai desert and went up to Kivrot HaTa'avah and stayed there for 30 days, and afterwards they went...

Calev was 40 years old when Moshe sent him to spy out the land [(Yehoshua 14:7). Calev is Eshkol, the master of the covenant of Avraham, and his name was 'Buried' and in him Calev was rectified and he exerted himself to carry the cluster (eshkol) (year 2449). Chur was reincarnated in him. Eliezer the servant of Avraham was reincarnated in Calev ben Yefuneh, therefore he went to prostrate on the graves of the fathers, because Avraham was his first master among the fathers.

Therefore he was called Ashchur (blackened), for his teeth were blackened because of...]:

Chanan ben Achbor died in year 2449 [(see years 2411 and 2445)]: