2 adverbs to describe how to invention

The whole is nothing but an impudent plagiarism, and it is crowned and topped by a scrap purporting to be from Shakespeare, but merely the invention of the compiler.

It is probable that this was the first clock of which every portion was made in America; it is certain that it was as purely his own invention as if none had ever been made before.

2 adverbs to describe how to  invention  - Adverbs for  invention