It's a custom that Queen Charlotte from Mecklenburg-Strelitz brought with her to England.

这是梅克伦堡-斯特雷利茨的夏洛特女王带到英国的习俗。

It was big in northern states, including the Duchy, where Charlotte of Mecklenburg-Strelitz was from.

它在北方各州很受欢迎，包括公爵领地，梅克伦堡-斯特雷利茨的夏洛特就来自公爵领地。