Every year, more than one million visitors step foot into Canterbury Cathedral in south-east England. Considered one of the oldest and most famous Christian churches in England, the Unesco World Heritage site dates back some 1,400 years, predating the country itself.
The cathedral's role as an important pilgrimage site is inextricably linked to the murder of its most famous archbishop: Thomas Becket. After a long feud, King Henry II is believed to have ordered the murder of Becket in 1170. Shortly afterwards, a series of miracles were said to take place, leading Canterbury to become one of Europe's most famous pilgrimage sites.
Among the church's most famous attractions are its stunning series of stained glass windows. One in particular depicts the gruesome murder of Becket himself. Now, decades after one art historian hypothesised as much, new research has proven that some of the stained glass windows in the cathedral may be among the oldest in the world.
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