 Burma's "Glass Palace Chronicle" recounts a story about the Burmese-Siamese war (1765–1767) that illustrates the divine properties ascribed to certain cannon.After attempts to repel Burmese attacks on the Siamese capital had proved unsuccessful, the King of Siam ordered that the city's guardian spirit, a great cannon called "Dwarawadi", be used to halt the advance.The gun was ceremoniously hoisted and aimed at the enemy's camp, but the powder failed to ignite.