Smaller commonly known companion swords are the wakizashi and the tantō. Wearing a long sword (katana or tachi) together with a smaller sword became the symbol of the samurai, and this combination of swords is referred to as a daishō (literally "big and small"). During the Edo period only samurai were allowed to wear a daisho. A longer blade known as the nodachi was also used in the fourteenth century, though primarily used by samurai on the ground. The yumi (longbow), reflected in the art of kyūjutsu (lit. the skill of the bow) was a major weapon of the Japanese military. Its usage declined with the introduction of the tanegashima (Japanese matchlock) during the Sengoku period, but the skill was still practiced at least for sport. The yumi, an asymmetric composite bow made from bamboo, wood, rattan and leather, had an effective range of if accuracy was not an issue. On foot, it was usually used behind a tate (), a large, mobile wooden shield, but the yumi could also be used from horseback because of its asymmetric shape. The practice of shooting from horseback became a Shinto ceremony known as yabusame (). Pole weapons including the yari (spear) and naginata were commonly used by the samurai. The yari displaced the naginata from the battlefield as personal bravery became less of a factor and battles became more organized around massed, inexpensive foot troops (ashigaru). A charge, mounted or dismounted, was also more effective when using a spear rather than a sword, as it offered better than even odds against a samurai using a sword. In the Battle of Shizugatake where Shibata Katsuie was defeated by Toyotomi Hideyoshi, seven samurai who came to be known as the "Seven Spears of Shizugatake" () played a crucial role in the victory. Tanegashima were introduced to Japan in 1543 through Portuguese trade. Tanegashima were produced on a large scale by Japanese gunsmiths, enabling warlords to raise and train armies from masses of peasants. The new weapons were highly effective; their ease of use and deadly effectiveness led to the tanegashima becoming the weapon of choice over the yumi. By the end of the 16th century, there were more firearms in Japan than in many European nations. Tanegashima—employed en masse, largely by ashigaru peasant foot troops—were responsible for a change in military tactics that eventually led to establishment of the Tokugawa shogunate and an end