Lecture, St John's College, Thursday, 15 Oct 2026 - 17:30

A History of the World in Four Algorithms

A futuristic, abstract background filled with glowing teal mathematical equations, geometric shapes, and formulas floating through a matrix-like digital space

Algorithms are fundamental to the story of mathematics – they’ve been around for over four thousand years. A theorem may prove that a solution to a problem exists, but an algorithm gives you the directions to actually find it.

This lecture explores four key algorithms that have not just shaped pure mathematics, but have found unexpected applications in areas as diverse as nuclear physics, film-making, medicine, and music.

Sarah Hart Professor of Geometry

Professor Sarah Hart

Professor of Geometry

Sarah Hart was the first woman Professor of Geometry at Gresham College, and Acting Provost between March and October 2025. She is also Professor Emerita of Mathematics at Birkbeck, University of London where she served as the Head of Mathematics and Statistics.

Find out more

Support Gresham

Gresham College has offered an outstanding education to the public free of charge for over 400 years. Today, Gresham College plays an important role in fostering a love of learning and a greater understanding of ourselves and the world around us. Your donation will help to widen our reach and to broaden our audience, allowing more people to benefit from a high-quality education from some of the brightest minds.