26 moments
Birth in Bangkok
· Bangkok, Siam

Wikimedia Commons · Public domain · file Chulalongkorn was born in Bangkok, then the capital of Siam. Coordinates represent central Bangkok; the cited biographical summary does not identify a more precise birthplace.
Novice ordination at Wat Bawonniwet
· Wat Bawonniwet Vihara, Bangkok, Siam

Wikimedia Commons · Public domain · file As a prince, Chulalongkorn undertook a six-month novice ordination at Wat Bawonniwet under royal tradition. The source supports the year, but not exact ordination and departure dates.
Solar-eclipse expedition at Wa Ko
· Wa Ko, Prachuap Khiri Khan Province, Siam

Wikimedia Commons · Public domain · file Chulalongkorn accompanied his father, King Mongkut, on the expedition to observe the solar eclipse; both subsequently became ill with malaria. The expedition is dated only to 1868 in the quoted source; coordinates are a representative point for Wa Ko.
Study visit to Java
· Java, Dutch East Indies

Wikimedia Commons · Public domain · file Chulalongkorn made an early visit to Java, beginning a pattern of official travel to the Dutch East Indies. Coordinates are a representative point for the island of Java because the cited statement does not specify a locality.
Study visit to Singapore
· Singapore, Straits Settlements

Wikimedia Commons · Public domain · file During his regency, Chulalongkorn visited Singapore to study colonial administration, an experience later associated with his modernization program. The source provides the year but not the dates or venues of the Singapore visit.
Administrative tour of Bombay
· Mumbai, Bombay Presidency, British India

Wikimedia Commons · Public domain · file Chulalongkorn visited Bombay during his British India journey, one of the travels that informed his later modernization ideas. The source identifies early 1872 but does not provide a date for the Bombay stop.
Administrative tour of Calcutta
· Kolkata, Bengal Presidency, British India

Wikimedia Commons · Public domain · file Chulalongkorn toured Calcutta during his British India journey, studying colonial administration before his full personal rule. The source identifies early 1872 but does not give an arrival date for Calcutta.
Administrative tour of Delhi
· Delhi, Punjab Province, British India

Wikimedia Commons · Public domain · file Chulalongkorn visited Delhi as part of his study tour of British Indian administrative centres. The source identifies early 1872 but does not provide a date for the Delhi stop.
Return visit to Singapore
· Singapore, Straits Settlements

Wikimedia Commons · Public domain · file Chulalongkorn returned to Singapore before departing on his first European grand tour the following year. The source gives only the year for this visit.
Second official visit to Java
· Java, Dutch East Indies

Wikimedia Commons · Public domain · file Chulalongkorn made his second of three documented official visits to Java; he left a detailed journal of this journey. Coordinates are a representative point for Java; the cited statement does not identify a locality for the 1896 visit.
Departure on first European grand tour
· Bangkok, Siam

Wikimedia Commons · Public domain · file Chulalongkorn left Bangkok aboard the royal yacht Maha Chakri for his first journey to Europe. Coordinates represent central Bangkok rather than the specific departure pier.
Arrival at Venice
· Venice, Kingdom of Italy

Wikimedia Commons · Public domain · file Venice was Chulalongkorn's first European arrival point on the 1897 grand tour.
Stay in Bern
· Bern, Swiss Confederation

Wikimedia Commons · Public domain · file Chulalongkorn arrived in Bern and remained in Switzerland through the end of May during his European journey. Coordinates represent central Bern; the source notes that he mainly stayed at Hotel Bernerhof.
Audience at Vatican City
· Vatican City

Wikimedia Commons · Public domain · file Chulalongkorn met King Umberto I and Pope Leo XIII during a visit described as the first Vatican visit by a non-Christian head of state.
Residence at Peterhof Palace
· Peterhof Palace, Peterhof, Russian Empire

Wikimedia Commons · Public domain · file After travelling via Warsaw, Chulalongkorn arrived in Saint Petersburg and resided at Peterhof Palace, where he engaged with Russian officials. The card uses Peterhof Palace, the explicitly stated residence, rather than central Saint Petersburg.
Reception in Stockholm
· Stockholm, Sweden-Norway
King Oscar II received Chulalongkorn in Stockholm, where the Siamese king toured sites including the General Art and Industrial Exposition.
Arrival in Copenhagen
· Copenhagen, Denmark

Wikimedia Commons · Public domain · file Chulalongkorn arrived in Copenhagen and was greeted by King Christian IX during the Scandinavian portion of his tour.
Meeting Kaiser Wilhelm II at Potsdam
· Potsdam, German Empire

Wikimedia Commons · Public domain · file Chulalongkorn met Kaiser Wilhelm II at Potsdam and attended military parades and manoeuvres with him.
Arrival in Paris
· Paris, French Third Republic

Wikimedia Commons · Public domain · file Chulalongkorn arrived in Paris for a diplomatically important visit aimed in part at improving relations with France after the 1893 crisis.
Arrival at Irun during Spanish tour
· Irun, Kingdom of Spain

Wikimedia Commons · Public domain · file Chulalongkorn entered Spain at Irun for a four-day tour that included Madrid and Seville.
Return from first European grand tour
· Bangkok, Siam

Wikimedia Commons · Public domain · file Chulalongkorn and his entourage returned to Bangkok after 254 days abroad on the first grand tour of Europe. Coordinates represent central Bangkok rather than the arrival harbor.
Third official visit to Java
· Java, Dutch East Indies

Wikimedia Commons · Public domain · file Chulalongkorn made his third documented official visit to Java, completing a sequence of visits in 1871, 1896, and 1901. Coordinates are a representative point for Java; the cited statement does not identify a locality for the 1901 visit.
Departure on second European journey
· Ratchaworadit Pier, Bangkok, Siam

Wikimedia Commons · Public domain · file Chulalongkorn departed Bangkok on a more private European journey focused on rest and medical treatment as well as visits and meetings.
Health stay in Bad Homburg
· Bad Homburg vor der Höhe, German Empire

Wikimedia Commons · Public domain · file Chulalongkorn travelled to Bad Homburg for a health cure during his second European journey. The German source states that he travelled to Bad Homburg for a cure; coordinates represent the town centre.
Return to Bangkok from second European journey
· Bangkok, Siam

Wikimedia Commons · Public domain · file Chulalongkorn returned to Bangkok after his second European journey; Crown Prince Vajiravudh had served as regent during his absence. Coordinates represent central Bangkok rather than the specific arrival point.
Death at Amphorn Sathan Residential Hall
· Amphorn Sathan Residential Hall, Dusit Palace, Bangkok, Siam

Wikimedia Commons · Public domain · file Chulalongkorn died of kidney disease at his residence in Dusit Palace and was succeeded by his son Vajiravudh.