* Battle of Baekgang: Korean Baekje forces and their Japanese allies are defeated in this naval battle by Korean and Chinese armies in a joint Silla – Tang victory.

According to the Nihon Shoki and Kojiki, a Korean scholar called Wani () was dispatched to Japan by the Kingdom of Baekje during the reign of Emperor Ōjin in the early 5th century, bringing with him knowledge of Confucianism and Chinese characters.

* The Korean Baekje kingdom, under King Goi, attacks the Chinese command of Daifang.

Allying with the Korean Silla Kingdom, the Chinese fought against Baekje and their Yamato Japanese allies in the Battle of Baekgang in August 663, a decisive Tang – Silla victory.

The Battle of Baekgang was actually a restoration movement by remnant forces of Baekje, since their kingdom was toppled in 660 by a joint Tang – Silla invasion, led by notable Korean general Kim Yushin ( 595 – 673 ) and Chinese general Su Dingfang.

* The first diplomatic ties are established between the Korean kingdom of Baekje and the Chinese court of the Jin Dynasty.

In the process, Baekje came into fierce confrontation with Goguryeo and the Chinese commanderies in the vicinity of its territorial ambitions.

Baekje played a fundamental role in transmitting cultural developments, such as Chinese characters, Buddhism, iron-making, advanced pottery, and ceremonial burial into ancient Japan.

Silla artifacts, including unique gold metalwork, show influence from the northern nomadic steppes, with less Chinese influence than are shown by Goguryeo and Baekje.

Chinese Academy of Social Sciences investigated this epitaph and reported that it was written as " Silla and Baekje were Client state of Japan ".

The Chinese Tang Dynasty aiding Korean kingdom of Silla ( see also Unified Silla ) and expelled the Baekje-Japan naval forces from the Korean peninsula ( see Battle of Baekgang ) and conquering Silla's other Korean rivals, Baekje and Goguryeo by 668.

After the fall of Baekje ( 660 AD ), the Yamato government sent envoys directly to the Chinese court, from which they obtained a great wealth of philosophical and social structure.

Wang ( Hangul: 왕 ; Hanja: 王 ), or king, was a Chinese royal style used in many states rising from the dissolution of Gojoseon, Buyeo, Goguryeo, Baekje, Silla and Goryeo.

Later, Baekje played a fundamental role in transmitting cultural developments, including Chinese characters and Buddhism, into ancient Japan.

The remaining material culture from the kingdom of Silla including unique gold metalwork shows influence from the northern nomadic steppes, differentiating it from the culture of Goguryeo and Baekje where Chinese influence was more pronounced.

Allied with China under the Tang dynasty, Silla conquered Goguryeo in 668, after having already conquered Gaya in 562 and Baekje in 660, thus ushering in the North-South states period with Later Silla to the south and Balhae to the north, when Dae Jo-young, a former Goguryeo military officer, revolted Tang Chinese rule and began reconquering former Goguryeo territories.

However, the Liu Song dynasty, as a southern Chinese dynasty of ancient times, had little contact with northeast Asia and most historians in Japan, Korea, and elsewhere believe that this dynasty most likely treated Baekje, Silla, and Yamato Japan as one and the same.

The Chinese Book of Sui says that Japan provided military support to Baekje and Silla.

Baekje was destroyed by the Silla and Chinese Tang dynasty allied force in 660 ( 20th year of King Uija ) and ruled by Tang.

Baekje brought Chinese culture, and introduced it to Silla, Gaya, and Japan.

In the 1930s, Chinese historian Jin Yufu developed a linear model of descent for the people of Manchuria and northern Korea, from the kingdoms of Buyeo, Goguryeo, and Baekje, to the present Korean nationality.

At the time of his birth, the kingdom of Goguryeo had grown to be a powerful and belligerent state, constantly warring with its neighbours, Chinese states to its north and west, and its fellow Korean kingdoms Silla and Baekje to its southeast and southwest respectively.

There was a group of similar languages called the Buyeo languages in the northern Korean Peninsula and southern Manchuria and possibly Japan, which included, according to Chinese records, the languages of Buyeo, Goguryeo, Baekje, Dongye, Okjeo, — and possibly Gojoseon and possibly was a sister language family to that of the Xianbei in Manchuria and Eastern Mongolia, but was different from ancient Manchu languages like Mohe language.

According to Chinese records, he received a rank of the third order, one rank below Baekje and Silla.

Other aspects of culture were also transmitted when the Baekje court retreated to Japan after Baekje was conquered.

Most scholars believe that there were massive transmissions of technology and culture from China via Korea to Japan which is evidenced by material artifacts in tombs of both states in the Proto – Three Kingdoms of Korea and Kofun period, as well as the later wave of Baekje refugees to Yamato.

Baekje also exported culture to Baekje's allies in the Wa kingdom of Yamato period Japan.

Geunchogo also sent scholars Wang In and Ajikgi to Japan to spread knowledge of Baekje culture, Confucianism, and Chinese characters.

Geunchogo also encouraged culture ; as Baekje forces occupied former Daebang, many Chinese scholars were invited and came to Geunchogo's court.

With advanced Chinese cultures adopted from those people and also imported culture from Eastern Jin through trade, Baekje people enjoyed higher quality of life.

What remains in the building sites, patterned tiles and other relics, as well as the stone pagodas that have survived the ravages of time, testifies to the highly developed culture of Baekje.

Japan also lost a key ally on the East Asian continent in Baekje as well as a direct link to continental technology and culture.

According to Nihon Shoki, was officially introduced to the Yamato court through Baekje in 552, while it is widely recognized Buddhism was introduced in 538 based on the biography of Prince Shōtoku ( Jōgū Shōtoku Hōō Teisetsu ) and the record of Gangō-ji ( Gangōji Garan Engi ).

Even assuming that the dates given in the Samguk Sagi are accurate, Baekje through Gusu's reign was probably a confederacy, not yet a kingdom.

Silla at this time was struggling to avoid absorption into the Tang Dynasty through the Protectorate General to Pacify the East ( 安東都護府 ), a military government Tang had established on the peninsula after the fall of Baekje and Goguryeo.

:" Our Queen of Baekje, as the daughter of Jwapyeong ( 佐平 ) Sataek Jeokdeok ( 沙乇積德 ), planted benevolence through the ages, and with the karma she has received in her present life, she educated the people.

Another interesting question that has puzzled many scholars is — why did Yamato go through so much effort to protect Baekje?

They are said to have come to Japan from China through the Chinese Lelang Commandery then through the Kingdom of Baekje ( both on the Korean peninsula ).

King Gwanggaeto the Great often led expeditions into the Baekje, Gaya confederacy, Buyeo, Later Yan and against Japanese invaders with his cavalry.

In external affairs, Bidatsu sought to re-establish relations with Korean Kingdoms and, according to Nihonshoki, his court successfully established relations with Baekje and Silla, two of the Three Kingdoms of Korea.

Silla allied itself with the Tang Dynasty, subjugating Baekje and defeating Goguryeo to unite the Korean Peninsula under one ruler.

* Asin of Baekje allies with Silla against Gwanggaeto the Great of Goguryeo ( Korea ).

Silla often faced pressure from Gougryeo, Baekje and Japan, and at various times allied and warred with Baekje and Goguryeo.

In 660, the southeastern kingdom of Silla conquered Baekje in the Southwest, and in 668, Silla conquered Goguryeo in the north with the help of China's Tang Dynasty ( see also Three Kingdoms of Korea ).

In 892, Gyeon Hwon founded the kingdom of Later Baekje in southwestern Silla, and in 918, Wanggeon ( King Taejo ) established the kingdom of Goryeo in the northwest, with its capital at Songak ( modern-day Kaesŏng ).

* According to the Book of Sui, Silla and Baekje greatly valued relations with Wa ( Japan ) of the Kofun period, and the Korean kingdoms made diplomatic efforts to maintain their good standing with the Japanese.

According to Kojiki Nihon Shoki, In Emperor Ōjin's reign, Geunchogo of Baekje presented Stallions and Broodmares with Horse trainers to the Japanese emperor.

Yamato Japan had close relations with the southwestern Korean kingdom of Baekje.

Ancient Japan had close ties with the Gaya Confederacy in the Korean Peninsula as well as with the Korean kingdom of Baekje.

Gaya exported abundant quantities of iron armor and weapons to Wa ( there was an abundance of naturally-occurring iron in that region ) and there may have even been a Japanese military post there with Gaya and Baekje cooperation.

Along with his emissaries to the Yamato court, the Baekje king sent bronze images of Buddha, some Buddhist scriptures, and a letter praising Buddhism.

A hostile Silla ( Silla was a rival of Baekje, and as Baekje had a close relationship with Wa Japan, Silla viewed Wa Japan also as a rival and was hostile to it ) prevented Japan from having any further meaningful contact with the Korean Peninsula until far later in time.