no
slavery was not an "invention"
because it was a different type of slavery.
He was born circa 1770 and he was born into slavery as both his mother Rose and his father York were already slaves of the Clark family. But Clark did not like to refer to him as a "slave", so in the journals he called him "my servant".
how did washington view on slavery evolved over time
Slavery has been around for pretty much all of human history.
The Abolition of Slavery
He campaigned against slavery.
in 1883-35
William Wilberforce
William Wilberforce sacrificed many things on his journey abolishing slavery.
William Wilberforce
William Wilberforce was one influential individual against slavery
William wilberforce & Frederick Douglas
William Wilberforce (MP) And Granville Sharp
i think abolishing slavery.......
William Wilberforce supported the RSPCA, the abolition of slavery and equal rights for homosexuals. If you want to know more, Wikipedia has a good page on him.
William Wilberforces legacy was the Abolition of Slavery and his part in showing social responsibiltity