Gunpowder

Gunpowder, formerly known as sulphur, is an item that can be obtained by killing Creepers, Ghasts or looting dungeon chests.

Uses
Gunpowder is used to craft TNT and fire charges, and can be brewed with any potion to make a splash potion. Fire charges were added in snapshot 12w04a, and have the same properties as flint and steel, except if launched from a dispenser.

they should make it so you can use gunpowder as a fuse by laying it down like red stone and lighting it with flin and steel

Placing
Although gunpowder has the appearance of gray redstone dust, it cannot be placed on the ground as a wire.

History
Schießpulver Sulphur/es Poudre à canon Puskapor 화약 Buskruit Proch pt-br:Gunpowder Порох 火药