Full Name = Karl Heinrich Marx; Profession = German philosopher, economist, historian, sociologist, political theorist, journalist and revolutionary socialist whose critiques of capitalism and vision of communism reshaped modern political thought and inspired global socialist movements; Nationality=German (born a subject of the Kingdom of Prussia in what is now Germany); Born=5 May 1818; Birthplace=Trier, Rhine Province, Kingdom of Prussia (now Trier, Rhineland-Palatinate, Germany); Generation=19th-century Industrial Age intellectual and revolutionary whose work emerged from the turbulent transformations of European industrial capitalism; Chinese Zodiac=Tiger (year of birth 1818, traditionally associated with courageous, rebellious and authoritative leaders, a sign under which Marx is often listed among famous Tigers); Zodiac Sign=Taurus (Western zodiac sign for 5 May, reflecting the fixed earth qualities often noted in astrological readings of his chart); Age in 2026=208 (he would have been 208 years old in 2026 if alive, having died in 1883); Marital Status=Married to Jenny von Westphalen from 1843 until her death in 1881, a lifelong partnership that endured poverty, exile and political struggle; Children=Seven children with Jenny von Westphalen, of whom three daughters survived to adulthood—Jenny Caroline, Jenny Laura and Jenny Julia Eleanor—each involved in socialist or intellectual life in various ways despite the family’s recurring hardship and tragedy; Description=Marx was educated in law and philosophy at the universities of Bonn, Berlin and Jena before turning to radical journalism and political activism, eventually formulating with Friedrich Engels the theory of historical materialism, which interprets history as a sequence of class struggles driven by material economic conditions; he coauthored The Communist Manifesto in 1848 and later wrote the multi‑volume Das Kapital, works that analyzed capitalism’s exploitation of labor, the dynamics of surplus value and the tendency toward crisis, profoundly influencing socialist parties, labor movements and revolutionary politics worldwide; living much of his later life as a political exile in London, often in severe poverty and ill health, he nevertheless continued an immense correspondence and research program in the reading rooms of the British Museum, leaving unfinished manuscripts and a vast body of theory that would shape the ideologies of the 20th century and beyond; Cause of Death: Bronchitis complicated by pleurisy (and related chest and respiratory complications), which led to his death in London on 14 March 1883 at the age of 64 after years of recurring illnesses and exhaustion.