Chen Yanxiang, the only person from Indonesia known to have visited dynastic Korea, reaches Seoul after having set out from Java four months before.

Chen Yanxiang was a merchant of Chinese origin, probably based on the Indonesian island of Java, who visited Joseon Korea and Muromachi Japan between 1394 and 1412. The only source for his life is the Korean Joseon Veritable Records, from which a "particularly colorful career" can be seen.

Seoul, officially Seoul Special Metropolitan City, is the capital and largest city of South Korea. The broader Seoul Metropolitan Area, encompassing Seoul, Gyeonggi Province and Incheon, emerged as the world's sixth largest metropolitan economy in 2022, trailing behind New York, Tokyo, Los Angeles, Paris, and London, and hosts more than half of South Korea's population. Although Seoul's population peaked at over 10 million, it has gradually decreased since 2014, standing at about 9.6 million residents as of 2024. Seoul is the seat of the South Korean government.

Java is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea to the north. With a population of 156.9 million people in mid 2024, projected to rise to 158 million at mid 2025, Java is the world's most populous island, home to approximately 56% of the Indonesian population while constituting only 7% of its land area. Indonesia's capital city, Jakarta, is on Java's northwestern coast.

October 12 is the 285th day of the year in the Gregorian calendar; 80 days remain until the end of the year.