1954
Collagen Structure
G. N. Ramachandran and collaborators propose a triple-helical structural model for collagen using X-ray diffraction constraints.
Historical place archive
Browse historical events and people recorded at Madras in India. The records below are rendered directly from the World History Database into this page's initial HTML.
G. N. Ramachandran and collaborators propose a triple-helical structural model for collagen using X-ray diffraction constraints.
G. N. Ramachandran and colleagues introduce conformational maps showing sterically allowed backbone angles in protein structures.
K. M. Cherian performs India's first successful coronary artery bypass operation, advancing cardiac surgery in the country.
Indira Gandhi addresses the Pugwash Conference in Madras and defends India's peaceful nuclear programme.
Indira Gandhi defends India's 1974 nuclear test and maintains that the programme serves national scientific and security objectives.
Suniti Solomon and her team identify India's first documented HIV infections after testing blood samples from women in Madras.
Suniti Solomon establishes YRG CARE, expanding voluntary HIV testing, counselling, clinical care and research in India.
Provenance
These entries are generated from stored World History Database records whose country and place fields match India and Madras. Names, dates, event labels and descriptions are reviewed and normalised as the database develops. Historical place names may not match modern administrative boundaries.
This database is a research index. For formal scholarly citation, verify individual claims against appropriate primary, archival, academic or specialist sources.