The views of Club speakers are their own and their participation does not constitute or imply endorsement or recommendation by The Commonwealth Club. Each year, we bring nearly 500 events on topics ranging across politics, culture, society and the economy to our members and the public, both in-person and via extensive online and on-air listenership and viewership. The Commonwealth Club of California is the nation's oldest and largest public affairs forum. By 1792 Liverpool was firmly established as the leading slave port, with 131 sailings in that year compared. Thomas Clarkson (28 March 1760 26 September 1846) was an English abolitionist, and a leading campaigner against the slave trade in the British Empire.He helped found the Society for Effecting the Abolition of the Slave Trade (also known as the Society for the Abolition of the Slave Trade) and helped achieve passage of the Slave Trade Act 1807, which ended British trade in slaves. The leading national forum open to all for the impartial discussion of public issues important to the membership, community and nation. It’s thought that over 40,000 African slaves were transported by Liverpool vessels.