The "Brilliant Period" refers to a significant era in the history of Japan during the late 19th and early 20th centuries, particularly from the 1860s to the 1910s. This period was marked by rapid modernization and industrialization, as Japan transformed from a feudal society into a major world power. Influenced by Western ideas and technologies, the country underwent extensive reforms in various sectors, including education, military, and infrastructure. During the Brilliant Period, Japan adopted a new constitution in 1889, established a parliamentary system, and improved its economy through industrial growth. The nation also expanded its influence in Asia, engaging in conflicts such as the Sino-Japanese War and the Russo-Japanese War, which showcased its emerging military strength. This era laid the foundation for Japan's future developments and its role on the global stage.