Fire lance

It began as a small pyrotechnic device attached to a polearm weapon, used to gain a shock advantage at the start of a melee.

[3] The first fire lances consisted of a tube, usually bamboo, containing gunpowder and a slow match, strapped to a spear or other polearm weapon.

However usage of fire lances in warfare was not mentioned until 1132 when Song garrisons used them during the Siege of De'an, in modern-day Anlu, Hubei, in a sortie against the Jin dynasty (1115–1234).

[2] In the late 1100s, pieces of shrapnel such as porcelain shards and small iron pellets were added to the gunpowder tube.

Each troop has hanging on him a little iron pot to keep fire [probably hot coals], and when it's time to do battle, the flames shoot out the front of the lance more than ten feet, and when the gunpowder is depleted, the tube isn't destroyed.

Then Marshal Pucha, at the head of 450 soldiers of the Loyal and Filial Army, embarked from the South Gate [of Guidefu] and sailed from the East to the North, killing the Mongol night patrols along the river bank until they arrived at Wangjiasi [where the Mongols had set up camp], .

Pucha Guannu divided his soldiers into teams of 50 to 70, each in a small boat, ordering them to advance to the Mongol camp and attack it from all sides.

Carrying their fire lances, the Jin soldiers launched a sudden attack which the Mongols were unable to resist.

[19] The last recorded usage of fire lances in Europe occurred during the Storming of Bristol in 1643 although the Commonwealth of England was still issuing them to ships in 1660.

[20][5] Versions where the fireworks and shot were placed in a wooden tube at the end of a pole were known as Troncks, fire-trunks or bombas in Europe.