Thanks!
The battles of Crecy (1346, the Plague first struck Britain in 1348) and Agincourt (1415) were both in large part due to the English proficiency with the (Welsh) Longbow.
The longbow has been said to be one of the casualties of the Black Death — breakdown of the feudal economy led to wage labor, which in turn led to the hoi polloi using the new income to, basically, go shopping, instead of practicing their archery.
interesting that the use of the bow depended on a culture and family structure specialization as bowmen, along with higher status