Charles Grey, 2nd Earl Grey in the context of "Whiggism"

The Slavery Abolition Act 1833 (3 & 4 Will. 4. c. 73) was an act of the Parliament of the United Kingdom which abolished slavery in the British Empire by way of compensated emancipation. The act was legislated by Whig Prime Minister Charles Grey, 2nd Earl Grey's reforming administration, and it was enacted by ordering the British government to purchase the freedom of all slaves in the British Empire, and by outlawing the further practice of slavery in the British Empire. The Act explictly delineated 19 separate pots of compensation covering the Caribbean, South Africa, and Mauritius. Although Britain, Canada, Australia, and New Zealand were technically included, these had relatively few slaves at this time for other reasons. India was excluded. Around 800,000 freed slaves were attested in the claims process.

While the 1833 Act was a landmark, it did not end slavery throughout the entire British sphere of influence. The Act explicitly excluded territories like British India, where slavery was addressed separately by the Indian Slavery Act, 1843. In regions colonized later, such as Nigeria, the abolition of pre-existing local systems of slavery was a gradual process that extended into the early 20th century. Furthermore, in British protectorates, which retained their own local laws, the institution persisted for much longer. For example, slavery in Bahrain was not legally abolished until 1937.

The Representation of the People Act 1832 (also known as the Reform Act 1832, Great Reform Act or First Reform Act) was an act of the Parliament of the United Kingdom (indexed as 2 & 3 Will. 4. c. 45) to reform the electoral system in England and Wales and to expand the franchise. The measure was brought forward by the Whig government of Prime Minister Charles Grey, 2nd Earl Grey.

The legislation granted the right to vote to a broader segment of the male population by standardizing property qualifications, extending the franchise to small landowners, tenant farmers, shopkeepers, and all householders who paid a yearly rental of £10 or more. The act also reapportioned constituencies to address the unequal distribution of seats. The act of England and Wales was accompanied by the Scottish Reform Act 1832 (2 & 3 Will. 4. c. 65) and Irish Reform Act 1832 (2 & 3 Will. 4. c. 88).

Henry Brooke Parnell, 1st Baron Congleton, PC (3 July 1776 – 8 June 1842), known as Sir Henry Parnell, Bt, from 1812 to 1841, was an Irish writer and Whig politician. He was a member of the Whig administrations headed by Lord Grey and Lord Melbourne of the 1830s and also published works on financial and penal questions as well as on civil engineering. He was a grand-uncle to the Irish nationalist leader Charles Stewart Parnell.

The Poor Law Amendment Act 1834 (4 & 5 Will. 4. c. 76) (PLAA) known widely as the New Poor Law, was an act of the Parliament of the United Kingdom passed by the Whig government of Earl Grey denying the right of the poor to subsistence. It completely replaced earlier legislation based on the Poor Relief Act 1601 (43 Eliz. 1. c. 2) and attempted to fundamentally change the poverty relief system in England and Wales (similar changes were made to the poor law for Scotland in 1845). It resulted from the 1832 Royal Commission into the Operation of the Poor Laws, which included Edwin Chadwick, John Bird Sumner and Nassau William Senior. Chadwick was dissatisfied with the law that resulted from his report. The Act was passed two years after the Representation of the People Act 1832 which extended the franchise to middle-class men. Some historians have argued that this was a major factor in the PLAA being passed.

The act has been described as "the classic example of the fundamental Whig-Benthamite reforming legislation of the period". Its theoretical basis was Thomas Malthus's principle that population increased faster than resources unless checked, the "iron law of wages" and Jeremy Bentham's doctrine that people did what was pleasant and would tend to claim relief rather than working.

The Ministry of All the Talents was a national unity government in the United Kingdom of Great Britain and Ireland formed by William Grenville, 1st Baron Grenville, on his appointment as prime minister on 11 February 1806, following the death of William Pitt the Younger.