Gentaku took this opportunity to have a Shingenkai (New Year's party) at Shiran-do school which was in his house in Mizutani-cho, Kyobashi with many Rangaku scholars and people who liked Dutch things because leap November 11 in that year fell on January 2, 1795.
玄沢は、これを機にこの年の閏11月11日が西暦で1795年1月2日に当たることから、京橋水谷町にあった自宅の塾芝蘭堂に、多くの蘭学者やオランダ風物の愛好家を招き、新元会（元日の祝宴）を催した。