Zhang Zuolin

(born March 19, 1875, Haicheng, Liaoning province, China—died June 4, 1928, Shengyang, Liaoning) Chinese warlord. After fighting in the Sino-Japanese War (1894–95), Zhang organized a self-defense militia in his native district. By 1912 he was in command of a division, and he set out to dominate Manchuria (northeastern China), relying on the tacit support of the Japanese, to whom he granted concessions in Manchuria. In 1918 he became inspector general of Manchuria's three provinces, which he ruled as a virtually autonomous state. In 1920 he pushed south into the Chinese heartland and in 1924 took Beijing, but his troops had to abandon their position in the face of the 1927 Northern Expedition. Zhang was killed by a bomb planted by Japanese extremists who hoped his death would provoke the Japanese into occupying Manchuria.

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In science and technology

• TCP segmentation offloading
• Technical Standard Order, a minimum performance standard issued by the FAA for certain items used on civil aircraft
• Time Sharing Option, an interactive command line interpreter for IBM mainframe operating systems MVS, OS/390 and z/OS
• Transmission System Operator
• Trichuris suis, wva, eggs of the swine whipworm
• Technical Safety Organisations, organisations which deliver services supporting the national nuclear regulatory authorities, in the field of nuclear and radiation safety.

In music

• Taipei Symphony Orchestra
• Tasmanian Symphony Orchestra
• Tokyo Symphony Orchestra
• Toronto Symphony Orchestra
• Trans-Siberian Orchestra

Organizations

• Tax Service Office
• Territory Sales Organization
• Transportation Security Officer
• A local sorority at Knox College in Galesburg, Illinois
• The Stationery Office, British publishers
• Travaux du Sud-Ouest, a French transportation company

Games

• The Sims Online, a massively multiplayer game (now EA Land)
• The Singular Online, a web-based massively multiplayer role-playing game

People

• Jose Mourinho, a former Chelsea and FC Porto manager whose nickname is "The Special One"
• Zuǒ Zōngtáng (左宗棠), known simply as General Tso

Other

• The Sacred Octagon, the bi-monthly journal of the New England MG T Register (an organisation of MG enthusiasts)
• The ICAO airline designator code for Transaero
• Total Shares Outstanding, a financial term referring to the stock held by investors, including restricted shares, as well as those held by the public
• Tourist Standard Open, a type of British Railways coach
• Marcos TSO, a sports car manufactored by Marcos Engineering Ltd.
• Transmission System Operator, the unit responsible for transmission of physical energy such as gas or oil in energy trading networks.
• Texas State Optical, a chain of doctor-owned eye care clinics located in various cities throughout the states of Texas, Oklahoma, Arkansas and Louisiana.