Great Muslim Explorers & Mapmakers (Years 10–11) — Geography

The golden age of Muslim geography: Ibn Battuta's vast travels, Al-Idrisi's world map, and the astrolabe.

In the year 1325, a 21-year-old from Tangier in Morocco set out to make one pilgrimage to Makkah. He did not come home for about 29 years. By the time Ibn Battuta finally stopped, he had crossed three continents and travelled an estimated 120,000 kilometres — roughly three times around the Earth — and had become one of history's greatest travellers.

Why this matters — Long before satellites and aeroplanes, Muslim scholars measured the world, mapped it, and wrote down what they found. Their maps and instruments spread across Europe and Asia and helped shape how humanity pictures the planet.

Ibn Battuta, the great traveller

Journeyed across North Africa, the Middle East, East Africa, India, and reportedly as far as China.
Dictated a famous travel account, the Rihla ("The Journey"), describing cities, peoples, foods and rulers.
His writings are a treasure for geographers and historians studying the fourteenth-century world.

A stylised map with dotted travel routes — an original sketch, not a copy of any real map.

Al-Idrisi and the map for a king

Around 1154, the scholar Al-Idrisi worked at the court of King Roger II of Sicily and produced one of the most accurate world maps of its age, together with a book of geography. The map is often called the Tabula Rogeriana ("the Book of Roger"). Interestingly, in the tradition of the time it was drawn with south at the top — a reminder that "north up" is just a convention, not a law of nature.

The same land, two conventions: Al-Idrisi drew south at the top — the map is flipped, not wrong.

Tools of the trade: the astrolabe

Muslim scientists refined the astrolabe, a beautiful brass instrument that could measure the angle of the Sun or a star above the horizon. From that angle a skilled user could work out their latitude, tell the time, and find direction. Alongside careful use of latitude and longitude, this made navigation and mapmaking far more precise.

Person / tool	Contribution	Roughly when
Ibn Battuta	Travelled ~120,000 km; wrote the Rihla	1300s
Al-Idrisi	Tabula Rogeriana world map	1150s
Astrolabe (refined)	Measured latitude, time, direction	Golden age

The astrolabe's trick: the star's angle above the horizon equals how far north you are.

An astrolabe: line up the pointer with a star to read its angle above the horizon.

Case study: Al-Idrisi did not just draw pictures. He gathered reports from travellers and merchants, cross-checked them, and combined them into a map and text that European scholars used for centuries — an early form of the "crowd-sourced" geography we now do with satellites and phones. His careful work influenced European mapmakers for centuries afterwards.

Common mistake: thinking old maps were always wrong or fanciful. Al-Idrisi's map was remarkably accurate for its time; the biggest surprise for modern eyes is simply that south is at the top.

Memory hook: "Battuta walked it, Idrisi drew it, the astrolabe measured it." Traveller, mapmaker, instrument.