20021July 19, the winners of the theoretical essay-writing activity of "Celebrating the Centenary of the Founding of the Party" in Heilongjiang Province were announced: this essay-writing activity * * * received 209 papers from the theoretical circles of social sciences in the whole province, and 65 papers were selected by the expert group, including 6 first prize19 and 24 second prize. Xin-jun Han, director of the Cultural Research Center, won the first prize for the article "Historical Contribution of Dongan Base Area in Northern Manchuria during the Liberation War".