IN ANCIENT TIMES, China was better known in the West than one might suppose. For centuries a trade route called the Silk Road had linked China with Persia and the West. Arab and Persian merchants settled in China, and Chinese envoys reached ancient Rome. But by the 5th and 6th centuries, tribal wars had shut the Silk Road and made China a closed empire.

The arrival of the T'ang Dynasty (AD 618-877) changed all this. The Chinese army crushed the rebels and a golden age of Chinese culture began. The capital, Chang-an (modern Xi-an), was the largest walled city ever built, with two million inhabitants. The reopening of the Silk Road in 632 brought a new cosmopolitan flavour. The Emperor, T'ai Tsung, tolerated all religions and encouraged the discussion of foreign ideas.

The Church saw its opportunity and took it. In 635, the Assyrian archbishop Yeshuyab sent an apostolic team, led by a learned and wise monk named Alopen. They accompanied a traders' camel train and arrived at Chang-an.

Alopen had done his homework. He knew the very formal Chinese culture and the need to avoid open war with the Buddhists. So for three years, he and Chinese converts worked on the first Christian book in the Chinese language: The Sutra of Jesus Messiah. A sutra was the way Buddhists presented their teachings, as a series of discourses. Alopen was playing them at their own game.

Much reads strangely to Western ears: Jesus is "the Heaven-Honoured One", the "Master of the Victorious Law", who has sent "the Pure Breeze" (the Holy Spirit) from "our Three-One". But the Emperor was pleased with what he read and in 638 made a decree: Alopen's religion was "wonderful, spontaneous, producing perception and establishing essentials for the salvation of creatures and the benefit of man". The Emperor commanded that a Christian religious centre be built from public funds in the Western merchants' quarter of the city.

From this base, with a core of just 21 Christians, the gospel spread out into the land. Four regional centres were built and by the time of the next Emperor, Kuo Tsung, there were churches in ten provinces. Alopen was made bishop (or in the quaint Chinese, "Spiritual Lord, Protector of the Empire") and the Church was able to put down firm roots in China - which it would need when persecution was unleashed by Empress Wu in 690.

Aidan