Osaka in the context of "Seto Inland Sea"

A mora (pl. morae or moras; often symbolized μ) is a smallest unit of timing, equal to or shorter than a syllable, that theoretically or perceptually exists in some spoken languages in which phonetic length (such as vowel length) matters significantly. For example, in the Japanese language, the name of the city Ōsaka (おおさか) consists of three syllables (O-sa-ka) but four morae (O-o-sa-ka), since the first syllable, Ō, is pronounced with a long vowel (the others being short). Thus, a short vowel contains one mora and is called monomoraic, while a long vowel contains two and is called bimoraic. Extra-long syllables with three morae (trimoraic) are relatively rare. Such metrics based on syllables are also referred to as syllable weight. In Japanese, certain consonants also stand on their own as individual morae and thus are monomoraic.

The term comes from the Latin word for 'linger, delay', which was also used to translate the Greek word χρόνος : chrónos ('time') in its metrical sense.

Osaka Prefecture (大阪府, Ōsaka-fu; pronounced [oː.sa.ka, oː.sa.kaꜜ.ɸɯ]) is a prefecture of Japan located in the Kansai region of Honshu. Osaka Prefecture has a population of 8,778,035 (as of 1 April 2022) and has a geographic area of 1,905 square kilometres (736 sq mi). Osaka Prefecture borders Hyōgo Prefecture to the northwest, Kyoto Prefecture to the north, Nara Prefecture to the southeast, and Wakayama Prefecture to the south.

Osaka is the capital and largest city of Osaka Prefecture, and the third-largest city in Japan, with other major cities including Sakai, Higashiōsaka, and Hirakata. Osaka Prefecture is located on the western coast of the Kii Peninsula, forming the western is open to Osaka Bay. Osaka Prefecture is the third-most-populous prefecture, but by geographic area the second-smallest; at 4,600 inhabitants per square kilometre (12,000/sq mi) it is the second-most densely populated, below only Tokyo. Osaka Prefecture is one of Japan's two "urban prefectures" using the designation fu (府) rather than the standard ken for prefectures, along with Kyoto Prefecture. Osaka Prefecture forms the center of the Keihanshin metropolitan area, the second-most-populated urban region in Japan after the Greater Tokyo area and one of the world's most productive regions by GDP.

Kyoto (/ki.ˈoʊ.toʊ/ or /ˈkjoʊ.toʊ/; Japanese: 京都, Kyōto [kʲoꜜː.to] ), officially Kyoto City (京都市, Kyōto-shi; [kʲoː.toꜜ.ɕi] ), is the capital city of Kyoto Prefecture in the Kansai region of Japan's largest and most populous island of Honshu. As of 2020, the city had a population of 1.46 million, making it the ninth-most populous city in Japan. More than half (56.8%) of Kyoto Prefecture's population resides in the city. The city is the cultural anchor of the substantially larger Greater Kyoto, a metropolitan statistical area (MSA) home to a census-estimated 3.8 million people. It is also part of the even larger Keihanshin metropolitan area, along with Osaka and Kobe.

Kyoto is one of the oldest municipalities in Japan, having been chosen in 794 as the new seat of Japan's imperial court by Emperor Kanmu. The original city, named Heian-kyō, was arranged in accordance with traditional Chinese feng shui following the model of the ancient Chinese capitals of Chang'an and Luoyang. The emperors of Japan ruled from Kyoto in the following eleven centuries until 1869. It was the scene of several key events of the Muromachi period, Sengoku period, and the Boshin War, such as the Ōnin War, the Honnō-ji Incident, the Kinmon incident, and the Battle of Toba–Fushimi. The capital was relocated from Kyoto to Tokyo after the Meiji Restoration. The modern municipality of Kyoto was established in 1889. The city was spared from large-scale destruction during World War II and, as a result, its prewar cultural heritage has mostly been preserved.

The Taiheiyō Belt (Japanese: 太平洋ベルト, Hepburn: Taiheiyō Beruto; lit. "Pacific Belt"), also known as the Tōkaidō corridor, is the megalopolis in Japan extending from Ibaraki Prefecture in the northeast to Fukuoka Prefecture in the southwest, running for almost 1,200 km (750 mi). Its estimated population as of 2011 was about 80 million.

The urbanization zone runs mainly along the Pacific coast (hence the name) of Japan from Kantō region to Osaka, and the Inland Sea (on both sides) to Fukuoka, and is concentrated along the Tōkaidō–Sanyō rail corridor. A view of Japan at night clearly shows a rather dense and continuous strip of light (demarcating urban zones) that delineates the region. The high population is particularly due to the large plains – the Kantō Plain, Kinai Plain, and Nōbi Plain – which facilitate building in otherwise mountainous Japan.

The Kansai region (関西地方, Kansai Chihō; [kaꜜɰ̃.sai, kaɰ̃.sai tɕiꜜ.hoː] ) a.k.a. the Kinki region (近畿地方, Kinki Chihō; Japanese pronunciation: [kʲiꜜŋ.ki, kʲiŋ.ki̥ tɕiꜜ.hoː]) lies in the southern-central region of Japan's main island Honshū. The region includes the prefectures of Nara, Wakayama, Kyoto, Osaka, Hyōgo and Shiga, often also Mie, sometimes Fukui, Tokushima and Tottori. The metropolitan region of Osaka, Kobe and Kyoto (Keihanshin region) is the second-most populated in Japan after the Greater Tokyo Area.

Kintetsu Railway Co., Ltd. (近畿日本鉄道株式会社, Kinki-nippon Tetsudō Kabushiki-gaisha), referred to as Kintetsu (近鉄) and officially Kinki-Nippon Railway, is a Japanese passenger railway company, managing infrastructure and operating passenger train service. Its railway system is the largest in Japan, excluding Japan Railways Group. The railway network connects Osaka, Nara, Kyoto, Nagoya, Tsu, Ise, and Yoshino. Kintetsu Railway Co., Ltd. is a wholly owned subsidiary of Kintetsu Group Holdings Co., Ltd.

Naniwa-kyō (難波京) is a historical Japanese capital city, which was located in present-day central Osaka city.

Traces of ancient palaces in Naniwa were found in 1957. After the Kofun period, the Early Naniwa Palace was established as Japan's first capital in 651 during the Asuka period and is sumed up with the Late Naniwa Palace that was established from 726 to 784 in the Nara period afterwards. Through more recent excavations, the existence of a city was confirmed, at least for the latter period in the 8th century.

Tokugawa Ieyasu (born Matsudaira Takechiyo; January 31, 1543 – June 1, 1616) was a Japanese samurai, daimyo, and the founder and first shōgun of the Tokugawa shogunate of Japan, which ruled from 1603 until the Meiji Restoration in 1868. He was the third of the three "Great Unifiers" of Japan, along with his former lord Oda Nobunaga and fellow Oda subordinate Toyotomi Hideyoshi. The son of a minor daimyo, Ieyasu once lived as a hostage under daimyo Imagawa Yoshimoto on behalf of his father. He later succeeded as daimyo after his father's death, serving as ally, vassal, and general of the Oda clan, and building up his strength under Oda Nobunaga.

After Oda Nobunaga's death, Ieyasu was briefly a rival of Toyotomi Hideyoshi, before declaring his allegiance to Toyotomi and fighting on his behalf. Under Toyotomi, Ieyasu was relocated to the Kanto plains in eastern Japan, away from the Toyotomi power base in Osaka. He built his castle in the fishing village of Edo (now Tokyo). He became the most powerful daimyo and the most senior officer under the Toyotomi regime. Ieyasu preserved his strength during Toyotomi's failed attempts to conquer Korea. After Hideyoshi's death and the Battle of Sekigahara, Ieyasu seized power in 1600.

The Battle of Toba–Fushimi (鳥羽・伏見の戦い, Toba-Fushimi no Tatakai) occurred between pro-Imperial and Tokugawa shogunate forces during the Boshin War in Japan. The battle started on 27 January 1868 (or fourth year of Keiō, first month, 3rd day, according to the lunar calendar), when the forces of the shogunate and the allied forces of Chōshū, Satsuma and Tosa Domains clashed near Fushimi, a town near Kyoto, the sacred capital, and fighting progressed to the Toba road leading to Osaka, with the initial rout of the Satsuma from Fushimi. The battle lasted for four days, ending in a decisive defeat for the shogunate.

Panasonic Holdings Corporation is a Japanese multinational electronics manufacturer, headquartered in Kadoma, Japan. It was founded in 1918 as Matsushita Electric Housewares Manufacturing Works in the Fukushima ward of Osaka by Kōnosuke Matsushita. The company was incorporated in 1935 and renamed Matsushita Electric Industrial Co., Ltd., and changed its name to Panasonic Corporation in 2008. In 2022, it reorganized as a holding company and adopted its current name.

In addition to consumer electronics, for which it was the world's largest manufacturer in the late 20th century, Panasonic produces a wide range of products and services, including rechargeable batteries, automotive and avionic systems, industrial equipment, as well as home renovation and construction. The company is listed on the Tokyo Stock Exchange and is a constituent of the Nikkei 225 and TOPIX 100 indices, with a secondary listing on the Nagoya Stock Exchange.