1835 "To finance the compensation (for slave owners), the British government had to take on a £15 million loan (40% of its budget) with banker Nathan Mayer Rothschild and his brother-in-law Moses Montefiore. The money was not paid back until 2015."

This is a very interesting timeline about the abololition of slavery in different places and peoples https://en.wikipedia.org/wiki/Timeline_of_abolition_of_slave... i think it is also good to see things in the larger context