Individual itineraries and the circulation of scientific and technical knowledge in East Asia (16th–20th centuries)

Birth in Pavia

Enters the Society of Jesus

Asks to go to China

Sacerdotal ordination in Rome

Boards the San Carlos in Lisbon

Higher studies in theology in Goa

Manuscript Ren shen tu shuo

Stay in Macao

Fights against the Dutch who blockade Macao

Stay in Jiangzhou, Shanxi

Vagnone and Rho stay together in Jiangzhou, Shanxi

Studies Chinese in Jiangzhou, Shanxi

Bad health

Membership of Adam Schall von Bell in group of collaborators with Xu Guangqi on calendrical reform

Summoned to Beijing by Schall

Schall, who works on the calendar reform calls Rho to Beijing to collaborate on the calander reform

Commission: reform of the Chinese calendar

Made astronomical instruments

Made telescope for the emperor

Made mathematical tables

Rho presented memorials to the Emperor

Responded to criticism by officials

Rho uses Copernicus's works

Rho uses Galileo's works

Collaboration between Xu Guangqi and Luo Yagu to improve the accuracy of measurements.

Publishes Ai jin xing quan

Presented Chong zhen li shu 崇禎曆書

Observed and took measurements of the lunar eclipse of Chongzhen 9, 1st month, 15th day, xinyou, together with Li Tianjing, and others.

Writes books on astronomy and mathematics

Death in Beijing