When the skating stopped on Jamaica Pond

At least, the first time around. J.L. Bell reposts part of a memoir from a British officer assigned to colonial Boston in 1774 and 1775, who much enjoyed skating on Jamaica Pond until:

[T]he Yankees were constantly exercising [i.e., training for war], and became more and more insolent, so much so that the officers did not think it safe to go into the country near Boston.

Skating eventually returned, at least until 50,000 people almost drowned when the ice began to crack.