Emperor Meiji's empress has never given birth, and other concubines have five sons and 10 daughters. But except for the third son, Jiaren, all the other sons died young. So, in the case of no choice, Crown Prince Jiaren practiced in Chen's womb on June1915438+01day, and became the Taishi Emperor. Emperor Taishi was also sickly since he was a child. He suffered from meningitis and left a sequela. At the age of 40, he suffered from cerebral thrombosis and became mentally ill. When the disease broke out, the emperor often made some ridiculous behaviors in public. For example, when watching a military exercise, he would suddenly run down the reviewing platform and open the soldier's backpack to rummage around. On one occasion, he attended the opening ceremony of the National Assembly. On a whim, he smirked, rolled his speech into a cylinder, put it on his eyes and took pictures of foreign envoys. The old man felt that he could no longer make a fool of himself and lose the face of the Japanese, so it was convenient for him to decide Prince Hirohito as Regent in 192 1. In his later years, Emperor Taishi was in a state of insanity.
At the beginning of Taisho era, the political problem was how to reconcile the contradiction between the sharp increase in armaments and the serious financial difficulties promoted by the military sector. After the Russo-Japanese War, Japan brought Korea and northeast China into its sphere of influence, which made the demand for armaments expand rapidly. 19 12 12 in February, Saionji Kinmochi's cabinet resigned due to the request of the war department to expand two divisions, and was replaced by warlord Keitaro. However, Keitaro's coming to power caused a general wave of protests, and the first constitutional amendment movement broke out in Tokyo. The Constitutional Nationalist Party and the Constitutional Friendship Association put forward the slogan of "overthrowing clans and maintaining constitutionalism". The backers of this movement are industrial capitalists who are trying to seize power from warlords and bureaucrats. 19 13, the opposition party proposed to impeach the cabinet and forced the National Assembly to adjourn. Angry people surrounded the parliament, attacked police stations and police stations, and the unrest spread to big cities such as Osaka and Kobe, and the situation deteriorated. Emperor Taishi intervened and expressed his hope to maintain political stability, which led to the resignation of Keitaro's cabinet. The bourgeois democratic movement defeated the conservative forces, which is called "Dazheng coup" in history.
Since the first constitutional movement, the democratic movement of party politics needs to develop. 1924, the party parliament was finally realized, and this achievement was called "Dazheng democracy". However, Taisho democracy has not changed Japan's development strategy and foreign policy of foreign aggression and expansion. Yamamoto Gonnohyō e, a great warlord in Yuan Dynasty, proposed to expand the naval budget on a larger scale after he formed a cabinet. The people once again set off a constitutional movement and blew down Yamamoto's cabinet. Just as Emperor Taishi was at home and abroad, the First World War broke out.