Old Beijing has a custom of standing eggs upright on Spring Equinox.
Tips
culture
4th of the 24 solar terms (二十四节气). Falls on March 20 or 21. Marks the midpoint of spring when the sun crosses the celestial equator heading north. 分 means 'to divide' — day and night are divided equally.
memory
春 (spring) + 分 (divide) = the day that divides spring in half. Parallel to 秋分 (Autumn Equinox) — same idea, opposite season.