Late 1300s/ early 1400s. No exact date.
No, firstly is an adverb.First, however, can be used as a noun or an adverb (or an adjective, for that matter), and can always be used in place of firstly.
hand guns , long guns, Air guns , Rifle these are used as a firearms .
gunpowder can be used for guns and fireworks
Muskets were the type of guns used in 1690. Pistols were also common types of guns that were used in 1690.
1949
Yes, "firstly" is a real word. It is an adverb used to introduce the first in a series of items or points.
Long guns and hand guns
Hand guns and long guns.
The guns used in war to shoot down planes are called antiaircraft guns.
Gunpowder NEVER WAS used to make guns.
What is with you and guns.... ?
machine guns and rifles