The phrase "there has occurred" is grammatically correct and can be used in written English.
It is typically used when discussing a past event or situation. Example: "According to our records, there has occurred a significant increase in sales over the past quarter."
Also, as with any technology, there has occurred a transfer of ballistic missile technology to less-developed countries.
Although this point is arguable, he bravely attempts to make the case that the entry of Islam into another culture produces changes on every level, from political to personal: "Wherever Islam has spread, there has occurred a total and revolutionary transformation in the culture of those conquered or converted".
Kroiss [40] showed in laboratory experiments that there has occurred a beginning limitation of the AD at ammonium concentrations of 3 g/L.
However, with advancements in technologies and development of new devices, there has occurred a paradigm shift.
Over the ensuing years however, there has occurred a dwindling in high-level political interest and engagement with sustainable development issues.
It's no coincidence that many of the clashes there have occurred during the summer crab-fishing season.
Reached by Skype, an activist in Midan said the blast there had occurred outside the Zein al-Abiddine mosque, where some of the largest Friday protests have occurred.
The four officials, Mr. Moose, Mr. Harper, John Shattuck, assistant secretary of human rights, and Douglas J. Bennet, assistant secretary for International Organizations, titled their memo "Has Genocide Occurred?": Events in Rwanda have led to press and public inquiries about whether genocide has occurred there.
No seeding has occurred there since 1993.
But does what has occurred there -- and continues to unfold -- amount to genocide?
Supporting the plan, spreading the word of what has occurred there, bringing some solace to a nation that is still feeling the pain inflicted over thirty-five yeago ago.
