The phrase "prior to the establishment of" is correct and usable in written English.
It is used when referring to something that happened before a certain event or time took place. For example, "Prior to the establishment of the United Nations, international disputes were handled differently."
Prior to the establishment of the Union of South Africa in 1910, the area was known as the Cape Colony.
Prior to the establishment of the Liverpool & Manchester Railway, the cities were divided by Chat Moss, a vast and near-impassable bog.
He played the title character, a man who serves as the sole repository of history prior to the establishment of an ostensibly utopian society, in The Giver (2014).
A Greater Sydney Commission spokeswoman told Guardian Australia it was established in January to lead metropolitan planning for greater Sydney but the WestConnex project "was designed and approved prior to the establishment of the commission".
In such approaches, the acquired images are backprojected on a hypothetical backprojection surface prior to the establishment of stereo correspondences.
Our results support the relevance of taking fine scale soil variability into account prior to the establishment of a field trial to optimize experimental design.
Prior to the establishment of quotas for Alaskan halibut, for example, the government had reduced the fishing season to just two days.
"Prior to the establishment of the Office for Postdoctoral Education at UAB" said Sharon Johnston, the office's program coordinator, "there were loopholes in the system.
If these points are not harmonised prior to the establishment of a European TGC system, efficiency is unlikely to be obtained.
Furthermore, post-school certificates include those in specific trades which are occasionally on occupational priority lists (for example, chefs) and many migrants in our sample would have entered New Zealand prior to the establishment of the skilled migration system.
The authors proposed that a detailed MT survey be carried out prior to the establishment of the new geomagnetic observatory to evaluate the influence of induced currents on the geomagnetic field.
