3 Yuan Twenty-Four Solar Terms-Stories, Frost's Descent

The Twenty-Four Solar Terms — a calendrical system codified in the Huainanzi around 139 BC — were inscribed on UNESCO's Intangible Cultural Heritage list in 2016, prompting the People's Bank of China to launch this extended commemorative series. Frost's Descent (Shuāngjiàng) marks the moment in late October when ground frost becomes likely across the North China Plain, and has historically signaled the final window for winter wheat sowing.

The "Stories" subset within this broader solar terms program distinguishes itself from the earlier "Flowers" issues by incorporating narrative folk imagery rather than botanical motifs.