"The Condition of the Working-Class in England in 1844" by Frederick Engels is a powerful indictment of the Industrial Revolution's detrimental impact on workers. Engels meticulously demonstrates how industrial cities like Manchester and Liverpool experienced alarmingly high mortality rates due to diseases, with workers being four times more likely to succumb to illnesses like smallpox, measles, scarlet fever, and whooping cough compared to their rural counterparts. The overall death rate in these cities far surpassed the national average, painting a grim picture of the workers' plight. Engels goes beyond mortality statistics to shed light on the dire living conditions endured by industrial workers. He argues that their wages were lower than those of pre-industrial workers, and they were forced to inhabit unhealthy and unpleasant environments. Addressing a German audience, Engels' work is considered a classic account of the universal struggles faced by the industrial working class. It reveals his transformation into a radical thinker after witnessing the harsh realities in England. "The Condition of the Working-Class in England in 1844" remains an essential resource for understanding the hardships endured by workers during the Industrial Revolution. Engels' meticulous research and impassioned arguments continue to shape discussions on labor rights, social inequality, and the historical agency of the working class.