Philosophy of Science By Pramila Parajuli Period: 1760 to 1840 Industry 1.0 Industrial revolution 1st Period: 1870 to 1914 Industry 2.0 2nd Industrial Revolution 1905 Theory of Relativity Period: 1969 to 2000 Industry 3.0 3rd Industrial revolution Period: 2011 to 2020 Industry 4.0 4th Industrial revolution Period: 2020 to 2025 Industry 5.0 5th Industrial revolution