Leo is an able diplomat: by arranging the marriage of his thirteen-year-old son Constantine in 733 to a daughter of the Khagan of the Khazars, he gains a valuable military alliance with the Khazars in the trans-Caucasus against the Umayyads.

Leo III responds to the defiance of Gregory II in 732/33 by confiscating all papal patrimonies in south Italy and Sicily, together constituting most papal income at this time.

He further removes the bishoprics of Thessalonica, Corinth, Syracuse, Reggio, Nicopolis, Athens, and Patras from papal jurisdiction, instead subjecting them to the Patriarch of Constantinople.

This is, in effect, an act of triage: although it strengthens the imperial grip on the southern empire, it all but guarantees the eventual destruction of the Exarchate of Ravenna.

The break between the papacy and the Empire is nearly complete.

King Æthelbald of Mercia enlarges his kingdom in 733 by conquering and occupying the Somerset district of British Dumnonia, thereby confining the southern Britons to Devon and Cornwall.

China’s Tang dynasty, under Emperor Xuanzong, controls a pan-Asian empire stretching from Korea to the borders of Persia.

During the glorious and tolerant period of the Tang dynasty at its zenith, Chinese Buddhism reaches its greatest heights and Islam, Manichaeanism, Judaism, Zoroastrianism and Nestorian Christianity all enter China.

The Tang capital, Changan, supports one million residents within its walls and another one million in its suburbs.

In 730, Xuanzong has four palace walls in the northeast sector of the capital city torn down and reassembled to construct a new Taoist abbey, the grounds of which were formerly a large garden for the governmental Bureau of Agriculture.

By the year 735, 149,685,400 kg (165,000 short tons) of grain are shipped annually along China’s Grand Canal.

The world’s first printed book sees production under the Tang dynasty.

In literature, the greatest glory of the Tang period is its poetry.

By the eighth century, poets had broken away from the artificial diction and matter of the court poetry of the southern dynasties and achieved a new directness and naturalism.

The reign of Xuanzong—known as Ming-huang, the Brilliant Emperor—is the time of the great figures of Li Po, Wang Wei, and Tu Fu.

The rebellion of An Lu-shan and Tu Fu's bitter experiences in it bring a new note of social awareness to his later poetry.

Li Bo (Li Po or Li Pai, also known by his courtesy name, Taibo), born in 701 in Central Asia, had grown up in present Sichuan (Szechwan); displaying an early taste for knight-errantry as well as poetry, he had left home about the age of twenty to roam the mountains, eventually moving into southern and central China, where he establishes various friendships.

Although not pursuing a conventional official career, Li Bo aspires to high military service.

He serves as court poet to the pleasure-loving emperor T'ang Xuandong, but the experience leaves him disappointed, and he returns to the life of a wanderer.

The game of go is introduced into Japan, where professionals play it at the royal court in Nara in 735.

The smallpox epidemic of 735-737 is recorded as having taken hold around August 735 in the city of Dazaifu, Fukuoka in northern Kyushu, where the infection had ostensibly been carried by a Japanese fisherman who had contracted the illness after being stranded on the Korean peninsula.

The disease spreads rapidly throughout northern Kyushu this year, and will persist into the next.

Japanese court officials, a few decades prior to the outbreak of smallpox in 735, had adopted the Chinese policy of reporting disease outbreaks among the general population.

This recording practice will greatly facilitate the identification of smallpox as the disease that afflicts Japan during the years 735-737.

Increased contact between Japan and the Asian mainland had led to more frequent and serious outbreaks of infectious diseases.

The Japanese population will suffer a thirty percent reduction in the smallpox epidemic from 735 to 737.

Hisham has been able to stem the Umayyad decline temporarily.

As the empire is reaching the limits of expansion, frontier defenses, manned by Syrian troops, are organized to meet the challenge of Turks in Central Asia and Berbers in North Africa.

In the aftermath of the Battle of the Defile and other similar disasters, the need to reinforce the buckling frontiers is stretching the military and financial resources of the Caliphate.

This is especially the case with the powerful Syrian army (the ahl al-Sham), the main pillar of the Umayyad regime, which is parceled out to distant provinces.

Eventually, this weakening of the Syrian army will be the major factor in the fall of the Umayyad dynasty during the civil wars of the 740s and the Abbasid Revolution that follows them.

Like his late brother al-Walid I, Hisham is a great patron of the arts, and he has again encouraged arts in the empire.

He has also encouraged the growth of education by building more schools, and perhaps most importantly, by overseeing the translation of numerous literary and scientific masterpieces into Arabic.

He has returned to a stricter interpretation of the Sharia as Umar had, and enforced it, even upon his own family.

His ability to stand up to the Umayyad clan may be an important factor in his success, and may point to why his brother Yazid had been ineffective.