http://africanhistory.about.com/library/weekly/aa080601a.htm
The majority of the transatlantic slave trade went to Brazil - 4 million people, then the Spanish Empire - 2.5 million, British West Indies and British NorthAmerica and the US combined account for another 2.5 million.
The first time a slave was taken from Africa to North America was in 1528, by the Spanish to Florida.
The first recorded incident of the English engaging in the Transatlantic trade was John Hawkins in October 1562, he traded with the Spanish.
14 May 1607 - Jamestown founded.
August 1619 - first African slaves brought to an English American colony, by the Dutch to Jamestown.
http://www.innercity.org/holt/slavechron.html
Having said all that it doesn't really change the real point that the British made huge fortunes from the Transatlantic slave Trade, at it's height were the key player, and squeezed all they could from the colonial economies that were supported by slave labour - and I agree that it is hypocritical to focus only on abolition and ignore the behaviour that preceded it, particularly as Britain was happy to reap the rewards of slavery abroad whilst slowly reforming at home.
I am not convinced that the British abolition of slavery was mainly the result of lack of profitability - I think the main source of that theory is a book by the Marxist jamaican historian Dr Eric Williams -
Capitalism and Slavery, published in the 60's just after Jamaican independence -when crediting any liberties acheived to the former colonial powers wasn't very fashionable.
The theory makes some sense though, especially after American Independence, but I think (but I am not that certain) the real downturn in Jamaica happened after unilateral abolition by Britain. Having said that there was a natural conflict between social reformers and business interests in Britain, and I imagine that had the colonies been producing more revenue (and had the US not become independent) the reformers would not have had as much influence.
I think a better argument is that abolition happened as a result of genuine principle when business opposition was weakened, but that having put themselves at a major economic disadvantage Britain was motivated by massive self interest in making major efforts to level the field by enforcing abolition using their Navy and pushing other countries to abolish slavery by treaty. Having control of 50% of the world's merchant shipping at the time, and the world's most powerful Navy gave Britain the muscle to abolish slavery unilaterally and then prevent anyone else from exploiting Britain's economic disadvantage for long.
The way I see it any country that has substantial power and influence and effects a reform is open to the charge of hypocrisy if it criticises another country for failing to make that reform, as the chances are that whatever injustice preceded the reform was done on a wider scale by the larger country. As a former superpower Britain still gets that criticism from time to time (normally internally), and the US now gets it daily. It is the price of success.
Similarly any country that slowly evolves a liberal regard for civil rights can be called hypocritical in comparison to a country that has no regard for civil rights whatsoever. The occasional failures of the US or Britain to extend their very liberal civil justice systems consistently to all its citizens can be called hypocritical in comparison to North Korea, for example, that couldn't give a damn and doesn't mind who knows. Both the US and Britain are hypocritical when it comes it human rights, it happens when a country has high ideals and sometimes fails to make them work in reality, but I know which systems I'd rather live under.
I don't know much of Tookie Williams, I don't respect the competence or integrity of lawyers, judges or politicians enough to support capital punishment, and it seems a waste to execute someone that might be able to do something socially useful, but he doesn't strike me as saint material either.
I enjoy the debate on this thread, it keeps me thinking.