It should be pointed out that the reason for the creation of the Bank of England was due to the necessity of the Royal Navy.
Put simply, without the need to fund the construction of and maintenance of large numbers of vessels and the truly insane amount of ancillary workforce to back it, it's entirely likely that the bank would never have come into existence.
And to be clear on the scale of the Navy construction, practically the entire country down to the last town and village was in some form or other connected to it from the manufacture of nails, rope to cured and salted meats that would last for prolonged periods.
Why did we need such? I'm glad you asked, partly to stop our European neighbours from invading (again) due to the ongoing struggles between Protestantism and Catholicism (cheers
Henry) partly to defend ourselves from these
fellas and partly to carve out our own
empire.