There is a version of this story where Angela Tabiri becomes a business administrator. Where she follows her older sisters into the commerce lane, graduates, gets a job and lives a perfectly good life.

That version doesn't exist and the world of mathematics, and the girls growing up in it, is better for that.

The Rejection That Redirected Everything

Angela Tabiri grew up in Accra, Ghana, in a neighbourhood she herself describes as a slum, somewhere with very few visible examples of people who had "made it."

She loved maths as a child, found a kind of thrill in hours of solving problems, but never imagined it as a career. Her plan was Business Administration at the University of Ghana.

It was the obvious path. Her sisters had taken it. So she applied and didn't get in.

What she got instead was her second choice: Mathematics and Economics. The detour wasn't part of the plan, but it was the beginning of everything.

She took to the challenge of maths with everything she had, spending hours after lectures going back over her notes, drilling problems until they gave way. She excelled.

After graduating, she worked as a teaching assistant at the University of Ghana for two years before enrolling at the African Institute for Mathematical Sciences (AIMS) Ghana for her masters degree.

It was, as she later described it, like being immersed in a 24-hour learning environment and it changed the direction of her life permanently.

From Glasgow to Quantum Algebra

From AIMS, Tabiri pushed further. She enrolled at the International Centre for Theoretical Physics (ICTP) in Italy for a postgraduate diploma in mathematics, a notoriously tough program, made harder by an unfamiliar education system, language barriers and subjects she hadn't studied before.

She got through it. Then she applied for a PhD at the University of Glasgow, secured the prestigious Schlumberger Foundation Faculty for the Future Fellowship in 2015 and in June 2019, walked out with a doctorate in Mathematics.

Her research sits inthe world of quantum algebra, a field that uses algebraic concepts to understand the properties of geometric shapes and structures.

It is abstract, it is demanding and it is exactly the kind of work that, not long ago, very few African women were seen doing in global mathematics spaces.

Tabiri wasn't just doing it; she was excelling.

Building What Didn't Exist

When Tabiri started her PhD in Glasgow, she went looking for female African mathematicians she could look up to: mentors from a distance, role models she could find in a Google search. She came up mostly empty.

So on her 28th birthday, she decided to build what didn't exist. That was the birth of Femafricmaths, a nonprofit organisation dedicated to promoting female African mathematicians and showing young girls across the continent the diverse careers that open up when you study mathematics.

The work is mostly done through social media where she does video interviews with women she calls "mathsqueens," sharing their journeys and their fields to audiences of girls who might otherwise never see themselves represented in the discipline.

The logic is simple and powerful. Tabiri has spoken about seeing a female head of department at her undergraduate university and how that visibility quietly told her that she could actually be a mathematician.

Femafricmaths is that moment, scaled and put on a platform.

The World's Most Interesting Mathematician

Back in Ghana, Tabiri took up a role at AIMS as a Research Associate and Academic Manager for the Girls in Mathematical Sciences Program (GMSP), a nine-month hybrid program for senior high school girls that combines monthly online masterclasses with residential sessions on campus.

Then in 2024, something notable happened. Tabiri entered The Big Internet Math-Off, a global competition run by The Aperiodical where sixteen mathematicians go head-to-head, presenting mathematical concepts to the public in interesting ways.

Audiences vote. One person is crowned the World's Most Interesting Mathematician.

Angela Tabiri won. She became the first African to ever hold that title, doing what she always does: using bottle caps, street food, dance and the rhythms of everyday Ghanaian life to show that mathematics isn't a foreign language. It is built into everything around us.

The Throughline

What Angela Tabiri's story really is, beneath the accolades, is a lesson in not being precious about the plan.

Business administration didn't work out. Italy was hard. Glasgow was far from home. But at every detour, she found something worth following. The maths, the community and the girls who needed to see her.

She built a movement out of what she couldn't find. That is the whole story.