I often see the word Whereas being used in formal letters in the University or at academic level. For example,
Whereas by Charter of Her Late Majesty Queen Victoria, dated 20th April, 1880, the Victoria University was founded and constituted having its seat in the City of Manchester.
What is its precise meaning? What is its use in sentences?
Besides looking up its meaning in the dictionaries, I still feel uncertainty while using it in sentences. It is often used in the beginning of sentence in formal letters but I don't understand its meaning fully. I'd like to know its meaning so that I too can use it often in University.