The National Cancer Act of 1971 created the Surveillance, Epidemiology, and End Results program, known as SEER, which became a central database of cancer cases in the United States from 1973. Before it, researchers lacked consistent national figures on cancer incidence and mortality, so SEER expanded the surveyed states and cities to build a national map. Its data cover roughly half the country and include patient demographics and tumour type. Analysis of SEER and similar registries from 1995 to 2016 showed rising colorectal cancer among people under 50, which led guidelines to recommend screening from age 45 instead of 50.

Hampi is a UNESCO World Heritage Site in Karnataka, India, with more than 1,600 surviving remains spread over 4,100 hectares. It was the capital of the Vijayanagara Empire from 1336 to 1565. Travellers from Persia and Portugal described it as a prosperous, wealthy and grand city with temples, markets and farms along the Tungabhadra River. By 1500 it was estimated to be the world's second-largest city after Beijing, and probably India's richest at the time. In 1565 a coalition of Muslim sultanates defeated the Vijayanagara Empire, its capital was conquered and destroyed, and the city was left in ruins. Hampi remains a religious centre, with the active Virupaksha Temple at its heart.