Or E. D. Dneprov's and B. M. Bim-Bad's anniversaries

Of the 10-th of December, would have turned 80 years since the birth of Edward Dneprov, who departed this life February 6, 2015; and of the 28-th of December, we will celebrate 75 years old of Boris Bim-Bud. E. Dneprov and B. Bim-Bad has made an outstanding contribution to the development of Russian history of education.