Chapter 12 of Rizal's Life, Works, and Writings covers the time period from August 1891 to March 1892, during which Rizal lived in Hong Kong and traveled to Japan, the United States, and Europe.
During this time, Rizal experienced a great deal of personal and professional growth. In Hong Kong, he worked as a medical doctor and also spent time writing and studying. He also used this opportunity to visit other parts of Asia, including Japan, where he was struck by the rapid modernization and westernization of the country.
In the United States, Rizal attended the World's Fair in Chicago, where he was impressed by the advances in technology and industry. He also met with Filipino immigrants in the United States and worked to establish a network of support for them.
Finally, Rizal traveled to Europe, where he spent time in Paris, Berlin, and Madrid. In Paris, he met with other Filipino intellectuals and worked on his writing. In Berlin, he attended lectures and studied at the university. And in Madrid, he met with Spanish politicians and intellectuals, including Antonio Maura, the Minister of Colonies, to discuss the situation in the Philippines and the potential for reform.
Throughout this time, Rizal continued to write and publish his works, including "El Filibusterismo," which was a continuation of his first novel, "Noli Me Tangere." He also wrote a number of articles and essays, including "The Philippine Problem," in which he outlined his thoughts on the political and social issues facing the Philippines.
Overall, Chapter 12 of Rizal's Life, Works, and Writings covers a crucial period in the life of this important figure in Philippine history. It was during this time that Rizal's ideas and influence began to spread beyond the Philippines and he became an important voice for reform and change in his homeland.