The phrase "since established in" is grammatically correct and can be used in written English.
It is typically used to indicate the time or year in which something was founded or established. Example: The company has been thriving since established in 1998, thanks to its innovative approach to business.
The document not only shows the influence of Buddhism of which the prince can be counted as the first major propagator in Japan but also embodies many of the ethical and political doctrines of Confucian government, long since established in China and subsequently implemented in the kingdoms on the Korean peninsula as well.
Since established in 2003, the NCMS was designed exclusively for the rural population according to their hukou, with the aim of improving accessibility to healthcare services and preventing catastrophic illnesses [ 3– 5].
The insect has since established itself in seven of the state's eight counties, said Theodore Andreadis of the Connecticut Agricultural Experiment Station.
Last year, in fact, was the company's best year ever since being established in 1962, said Cliff Greenhouse, its president.
The company has been based in Norwich since being established in 1995 as a joint venture between the Virgin Group, founded by Richard Branson, and Norwich Union.
Since becoming established in North America in 2002, the beetle is now found across northern eastern US states and in a number of Canadian provinces.
Jointly funded by the University of Münster, the University of Applied Sciences Münster, and the local labor office, it is one of several comparable units that have since been established in German universities.
Over fifty denominations and religions and some well known churches have since been established in Minneapolis.
It has since been established in scientific literature that community-based empirical studies outside of clinical and criminal contexts are necessary.
He returned from a year's loan to French Ligue 1 side Lorient in August and has since established himself in Arsene Wenger's first-team squad.
He has since established himself in the Republic of Ireland Under-19 squad.
