Li Chun marks the beginning of the Chinese Calendar in the old days. Its marked in the chinese calendar to indicate the sun being at celestial longitude 315degree and is celebrated as Chinese New Year. "In the lunisolar calendar, New Year's Day might be before or after Lichun. A year without Lichun is called 無春年 (no spring year). 無春年 is also known as 寡婦年 (widow year) in northern China or 盲年 (blind year) in southern China. Marriage is believed to be unlucky in a year without Lichun" source wikipedia . During this time it is easier to balance an egg. Here is an example of how the egg is laid to stand. Latest update: One egg can still be balance on the floor at other times of the year. Didn't try as many eggs.