UK Economic and Social Change 1700-2019 Three Centuries of Progress (Supplementary Volume 3) Being an investigation of the evidence that reveals the best known facts regarding the quantifiable economic and social history of the peoples of the United Kingdom of Great Britain and Northern Ireland (but particularly the English peoples) since the 18th century; including their population, economy, the role of the state, earnings, income inequality, living costs, household expenditure, housing, the retreat of real poverty, the air quality of their environment and their life expectancy. A data collation, analysis and presentation conducted from 2017 to 2023; but also founded upon five decades of the study of history, economics and the sociology of life and its political manifestations. Sources are derived from the most respected academic, authoritative and best researched origins. All underpinned by the thorough use of valid mathematical principles and the scientific methodology.