First pluck away the hairs of the armholes and wash them with white wine and rosewater, wherein you have boiled cassia ligna, and use it 3 or 4 times." Who says our ancestors weren't bothered by body odor? Here is one 17th-century hint on how to combat this age-old problem. The only danger to this recipe is that it might sting if you apply it to broken skin. (You might prefer shaving instead of plucking. Ouch!) Cassia is a relative of cinnamon; in fact, it is often sold as cinnamon.
Source: Hannah Woolley, The Accomplish'd Ladies Delight, 1684