For 10 points, name this decade, the fourth of the nineteenth century.
During this decade, an international border along the Arta-Volos line was recognized by the London Convention, and Stratford Canning negotiated the Treaty of Constantinople. During this decade, William Sleeman began his campaign to wipe out the Thuggee cult in India, while the Kowloon Incident kicked off the First Opium War. British Prime Ministers from this decade include Lord Melbourne and the Earl Grey. The first year of this decade saw Charles X toppled by the July Revolution, which brought Louis-Philippe to power in France. For 10 points, name this decade, the fourth of the nineteenth century.
During this decade, an international border along the Arta-Volos line was recognized by the London Convention, and Stratford Canning negotiated the Treaty of Constantinople.
the {1830s}