Emperor Taishō in the context of "Hirohito"

The Meiji era (明治時代, Meiji jidai) was an era of Japanese history that extended from October 23, 1868, to July 30, 1912. The Meiji era was the first half of the Empire of Japan, when the Japanese people moved from being an isolated feudal society at risk of colonization by Western powers to the new paradigm of a modern, industrialized nation state and emergent great power, influenced by Western scientific, technological, philosophical, political, legal, and aesthetic ideas. As a result of such wholesale adoption of radically different ideas, the changes to Japan were profound, and affected its social structure, internal politics, economy, military, and foreign relations. The period corresponded to the reign of Emperor Meiji. It was preceded by the Keiō era and was succeeded by the Taishō era, upon the accession of Emperor Taishō.

The rapid modernization during the Meiji era was not without its opponents, as the rapid changes to society caused many disaffected traditionalists from the former samurai class to rebel against the Meiji government during the 1870s, most famously Saigō Takamori, who led the Satsuma Rebellion. However, there were also former samurai who remained loyal while serving in the Meiji government, such as Itō Hirobumi and Itagaki Taisuke.

Mutsuhito (睦仁; 3 November 1852 – 29 July 1912), posthumously honored as Emperor Meiji (明治天皇, Meiji Tennō), was the 122nd emperor of Japan according to the traditional order of succession, reigning from 1867 until his death in 1912. His reign is associated with the Meiji Restoration of 1868, which ended the Tokugawa shogunate and began rapid changes that transformed Japan from an isolationist, feudal state to an industrialized world power. Emperor Meiji was the first monarch of the Empire of Japan, and presided over the Meiji era.

At the time of Mutsuhito's birth, Japan was a feudal and pre-industrial country dominated by the isolationist Tokugawa shogunate and the daimyō subject to it, who ruled over Japan's 270 decentralized domains. The opening of Japan to the West from 1854 fueled domestic demands for modernization, and when Mutsuhito became emperor after the death of his father Emperor Kōmei in 1867, it triggered the Boshin War, in which samurai (mostly from the Chōshū and Satsuma Domains) defeated the shogunate and restored power in his name. Documents issued during his reign include the Charter Oath of 1868, Meiji Constitution of 1889, Imperial Rescript to Soldiers and Sailors of 1882, and Imperial Rescript on Education of 1890, in which he was advised by a group of oligarchs known as the genrō. Other major events which occurred during his reign include the establishment of the Cabinet in 1885, Privy Council in 1888, Imperial Diet in 1890, and military victories over China in the First Sino-Japanese War and over Russia in the Russo-Japanese War. Taiwan and Korea were annexed in 1895 and 1910, respectively. Emperor Meiji died in 1912, and was succeeded by his eldest son, Yoshihito.

The Taishō era (大正時代, Taishō jidai; [taiɕoː dʑidai] ) was a period in the history of Japan dating from July 30th, 1912 to December 25th, 1926, coinciding with the reign of Emperor Taishō. The new emperor was a sickly man, which prompted the shift in political power from the old oligarchic group of elder statesmen (or genrō) to the Imperial Diet of Japan and the democratic parties. Thus, the era is considered the time of the liberal movement known as Taishō Democracy; it is usually distinguished from the preceding chaotic Meiji era and the following militaristic-driven first part of the Shōwa era.

The Kyōto Imperial Palace (京都御所, Kyōto-gosho), also known as Dairi (内裏), is the former palace of the Emperor of Japan from 1337 to 1869 located in Kamigyō-ku, Kyoto, Japan. Since the Meiji Restoration in 1869, the Emperors have resided at the Tokyo Imperial Palace, while the preservation of the Kyoto Imperial Palace was ordered in 1877. Today, the grounds are open to the public, and the Imperial Household Agency hosts public tours of the buildings several times a day.

The Kyoto Imperial Palace is the latest of the imperial palaces built in the northeastern part of the old capital of Heian-kyō (now known as Kyoto) after the abandonment of the Heian Palace that was located to the west of the current palace during the Heian period. The Palace lost much of its function at the time of the Meiji Restoration, when the capital functions were moved to Tokyo in 1869. However, Emperor Taishō and Shōwa still had their enthronement ceremonies at the palace.

Hirohito (裕仁; 29 April 1901 – 7 January 1989), posthumously honored as Emperor Shōwa (昭和天皇, Shōwa Tennō), was the 124th emperor of Japan according to the traditional order of succession, reigning from 1926 until his death in 1989. He remains the longest-reigning emperor in Japanese history and one of the longest-reigning monarchs in the world. As emperor during the Shōwa era, Hirohito presided over the rise of Japanese militarism, Japan's invasion of mainland Asia, the Second Sino-Japanese War, the Pacific War, and the nation's postwar economic miracle.

Hirohito was born during the reign of his paternal grandfather, Emperor Meiji, as the first child of Crown Prince Yoshihito and Crown Princess Sadako (later Emperor Taishō and Empress Teimei). When Emperor Meiji died in 1912, Hirohito's father ascended the Chrysanthemum Throne, and Hirohito was proclaimed Crown Prince of Japan in 1916, making him the heir apparent. In 1921, he made an official visit to the United Kingdom and Western Europe, marking the first time a Japanese crown prince had traveled abroad. Due to his father's ill health, Hirohito became Sesshō of Japan (regent) that same year. In 1924, he married Princess Nagako Kuni, with whom he later had seven children: Shigeko, Sachiko, Kazuko, Atsuko, Akihito, Masahito and Takako. He became emperor upon his father's death in 1926.