36 moments
Birth at Almora
· Almora, Uttarakhand, India

Wikimedia Commons · Public domain · file Ronald Ross was born in Almora in the North-Western Provinces of British India.
Sent to live on the Isle of Wight
· Isle of Wight, England, United Kingdom

Wikimedia Commons · Public domain · file As a child, Ross was sent from India to England to live with his aunt and uncle on the Isle of Wight. The source gives Ross's age rather than an exact date; 1865 is the year in which he turned eight.
Boarding school at Springhill
· Springhill, near Southampton, England, United Kingdom

Wikimedia Commons · Public domain · file Ross attended a boarding school at Springhill near Southampton for his secondary education. Coordinates are a representative point near Southampton; the historical school site's exact location is not established by the source.
Medical student at St Bartholomew's
· St Bartholomew's Hospital Medical College, London, England, United Kingdom

Wikimedia Commons · Public domain · file Ross enrolled at St Bartholomew's Hospital Medical College in London, beginning his medical training.
Acting Garrison Surgeon at Bangalore
· Bangalore, Karnataka, India

Wikimedia Commons · CC BY 4.0 · file While posted at Bangalore as Acting Garrison Surgeon, Ross considered controlling mosquitoes by restricting their access to water.
Home leave in London
· London, England, United Kingdom

Wikimedia Commons · CC BY 4.0 · file Ross took home leave from Indian Medical Service duties and travelled to London with his family.
First meeting with Patrick Manson
· London, England, United Kingdom

Wikimedia Commons · CC BY 4.0 · file During his London home leave, Ross first met Patrick Manson, who became his mentor in malaria research. The meeting location is established as London by the immediately preceding sentence in the same source passage.
Malaria work at Bombay Civil Hospital
· Bombay Civil Hospital, Mumbai, Maharashtra, India

Wikimedia Commons · CC BY 4.0 · file Ross sought malarial patients and began making blood films at Bombay Civil Hospital shortly after returning to India. The source does not provide a more precise date for this Bombay visit.
Return and landing at Secunderabad
· Secunderabad, Telangana, India
Ross returned to India aboard the Ballaarat and landed at Secunderabad, resuming malaria investigations.
Cholera investigation at Bangalore
· Bangalore, Karnataka, India

Wikimedia Commons · CC BY 4.0 · file Ross was deployed to Bangalore to investigate a cholera outbreak, interrupting his malaria research. The preceding sentence dates the episode to May 1895.
Visit to Sigur Ghat
· Sigur Ghat, Tamil Nadu, India

Wikimedia Commons · CC BY 4.0 · file Ross visited Sigur Ghat near Ooty and observed a distinctively resting mosquito he called the “dappled-winged” mosquito. The year follows the article's immediate chronology between the May 1895 episode and the explicitly dated May 1896 leave.
Malaria leave around Ooty
· Ooty, Tamil Nadu, India

Wikimedia Commons · CC BY 4.0 · file Ross used a short leave to visit the malaria-endemic region around Ooty; he soon contracted severe malaria.
Transfer back to Secunderabad
· Secunderabad, Telangana, India
Following his illness after the Ooty-area visit, Ross was transferred to Secunderabad. The year is established by the immediately preceding May 1896 chronology.
Posting to Kherwara
· Kherwara, Rajasthan, India

Wikimedia Commons · Public domain · file After Bombay, Ross was sent to the malaria-free station of Kherwara in Rajputana, a posting he regarded as detrimental to his research. The source gives September 1897 for the preceding Bombay transfer but does not date the subsequent Kherwara posting more precisely.
Mosquito discovery at Begumpet laboratory
· Sir Ronald Ross Institute of Parasitology, Begumpet, Hyderabad, Telangana, India

Wikimedia Commons · Public domain · file At his Secunderabad laboratory in Begumpet, Ross made the discovery associated with mosquito transmission of malaria. The source identifies the historical building in present-day Begumpet; coordinates represent that heritage-site area.
Transfer to Bombay
· Mumbai, Maharashtra, India

Wikimedia Commons · Public domain · file Ross was transferred to Bombay shortly after his 1897 mosquito work at Secunderabad.
Mosquito research at Mahanad
· Mahanad, West Bengal, India

Wikimedia Commons · CC BY 4.0 · file Ross maintained a bungalow laboratory at Mahanad village, staying there periodically to collect mosquitoes. The statement occurs in the account of his 1898 Calcutta assignment; individual stays are not dated.
Arrival at Presidency General Hospital
· Presidency General Hospital, Kolkata, West Bengal, India

Wikimedia Commons · CC BY 4.0 · file Ross arrived in Calcutta to undertake special-duty research at Presidency General Hospital.
Kala-azar investigation in southern Assam
· Southern Assam, India

Wikimedia Commons · CC BY 4.0 · file Ross travelled to southern Assam to investigate an epidemic of visceral leishmaniasis at the invitation of the Labac Tea Estate Hospital's second medical officer. Coordinates are a representative point for southern Assam because the source does not specify a settlement or exact estate location.
Joined Liverpool School of Tropical Medicine
· Liverpool School of Tropical Medicine, Liverpool, England, United Kingdom

Wikimedia Commons · CC BY 4.0 · file After resigning from Indian Medical Service, Ross went to England and joined the Liverpool School of Tropical Medicine as a lecturer.
Malaria investigation at Ismailia
· Ismailia, Egypt

Wikimedia Commons · CC BY 4.0 · file Ross travelled to Ismailia to investigate malaria for the Suez Canal company.
At New York before Panama voyage
· New York Harbor, New York, United States

Wikimedia Commons · CC BY 4.0 · file Ross was photographed aboard the S.S. Advance at New York while beginning his journey to Panama. Coordinates represent the New York harbor waterfront; the precise berth is not specified.
Panama inspection visit
· Panama, Panama

Wikimedia Commons · CC BY 4.0 · file Ross made a visit to Panama during his 1904 American journey, connected with malaria and sanitation work. The archival description establishes a Panama visit but not a specific locality; coordinates are a representative national point.
Arrival in Athens for malaria advice
· Athens, Greece

Wikimedia Commons · CC BY 4.0 · file Ross arrived in Athens during a Greek advisory mission on malaria eradication.
Field visit to the Copaic Plain
· Copaic Plain, Boeotia, Greece

Wikimedia Commons · CC BY 4.0 · file Ross travelled by train to the Copaic Plain during his malaria-eradication advisory work in Greece. Coordinates represent the former Lake Copais basin.
Residence and field work at Vacoas
· Vacoas-Phoenix, Mauritius

Wikimedia Commons · CC BY 4.0 · file During his Mauritius mission, Ross lived in Vacoas and spent three months visiting sites, examining mosquitoes, and organizing preventive measures. The residence began during the 1907–1908 mission; the source does not specify its exact start date.
Arrival in Mauritius
· Port Louis, Mauritius

Wikimedia Commons · CC BY 4.0 · file Ross arrived in Mauritius for an anti-malaria mission requested by planters and officials. The arrival was at Mauritius; Port Louis is used because the account states that on arrival he was taken to Government House there.
Medical visit to Brussels
· Brussels, Belgium

Wikimedia Commons · CC BY 4.0 · file Ross visited Brussels to treat Baron Dhannis after being asked to go by Sir Alfred Lewis Jones. The archive record dates the visit to 1909 without greater precision.
Nobel anniversary visit to Stockholm
· Karolinska Institutet, Stockholm, Sweden

Wikimedia Commons · CC BY 4.0 · file Ross visited Stockholm to attend the tenth-anniversary Nobel celebration and receive an honorary medical doctorate from the Karolinska Institutet.
Advisory visit to New Centenillo Mines
· New Centenillo Mines, near Linares, Andalusia, Spain

Wikimedia Commons · CC BY 4.0 · file Ross travelled to the New Centenillo Silver and Lead Mines to advise the medical staff on Mediterranean fever cases. Coordinates are a representative point near Linares; the archival account identifies the mine district rather than a surveyed historical mine coordinate.
Madrid stop on European expedition
· Madrid, Spain

Wikimedia Commons · CC BY 4.0 · file Ross spent several days in Madrid while travelling through Europe on malaria and medical advisory work. The source does not give Ross's precise arrival date in Madrid.
Malaria advisory visit to Cyprus
· Cyprus

Wikimedia Commons · CC BY 4.0 · file Ross travelled to Cyprus at the High Commissioner's request to advise on malaria. Coordinates are a representative point in Nicosia because the source does not specify the localities visited on Cyprus.
Transit through Egypt
· Egypt

Wikimedia Commons · CC BY 4.0 · file Ross departed Cyprus for Egypt during his 1913 European malaria-advisory expedition. The source establishes travel to Egypt but gives no city; coordinates are a representative national point.
Return to Copais
· Copaic Plain, Boeotia, Greece

Wikimedia Commons · CC BY 4.0 · file Ross revisited Copais in Greece while continuing his 1913 advisory expedition. “Copias” in the archive description is rendered as Copais; coordinates represent the former Lake Copais basin.
Memorial unveiling in Calcutta
· SSKM Hospital, Kolkata, West Bengal, India

Wikimedia Commons · CC BY-SA 3.0 · file Ross returned to Calcutta and personally unveiled a memorial to his malaria discovery at the former Presidency General Hospital. The source identifies the memorial as being on the walls of SSKM Hospital, formerly Presidency General Hospital.
Death in London
· London, England, United Kingdom

Wikimedia Commons · CC BY 4.0 · file Ross died in London after a long illness and an asthma attack, at the hospital bearing his name. The source's biographical text adds that he died at the hospital of his namesake, but does not provide a more precise death-site address.