проверте тексст плиз на ошибки

american constitution has 4.440 words. This is the oldest and the shortest constitution of some nations in all modern world. in may 1787 "The constitutional Convention" was opened in Philadelphia with crover of 7 states to disscus chanches in "Arcels of Confederation" weak document wich was used by all newborn states for selfgovernment
In some time representatives of all states came on those conferential axcept the Road Island state
After months of discutions and debates all 12 state`s delegations addopted the first Copy of new written Constitution. Then copies were sent to all stetes for ratification. Delever was the first state which confirmed Constitution, and that`s why it is famous for "The first state" Constitution has been working science 21 june 1788, when New Gamsher was the 9th. state which ratificated the document. Other states had refused to sign the newborn Constitution up to " Bill of Right" only after 10 changes were added to the Constitutional Convention. Besides many thought that theese rights had been already garanted by the new Constitution, and also thought that it must be the end, and Roald Island also had ratificated the new Constitution.

всмысле??