Longbow, I think
The cigar
Over 58,000 US servicemen were killed in the Vietnam War. Averaged out, possibly over a hundred per week for ten years, or over 200 a week for five years.
Penises and AA12's were Introduced 1 year into the Civil war which lasted 8 years.
The Spartans were at war every few years for several hundred years.
it was mean to last for one hundred years
Gunpowder and canons
The cigar
The Longbow.
The longbow wielded by the English archers turned the tide in many battles.
Longbow, Canons,Swords, spears, axe
Crossbows
Yes, forks had been introduced a couple of hundred years earlier and knives had been around forever.
The bow and arrow, long bow, cannon. Pretty much any long range weapons.
She was born during the Hundred Years War.
It is were the Congress of Arras met in an unsuccessful bid to end the Hundred Years War in 1435.
Depends on who is she. You didn't specify who "she" is.
joan of arc