The internal combustion engine was an improvement on the steam engine.
It harnessed new fossil fuels: coal and oil (not electricity yet).
Steel was known before the Second Industrial Revolution, but production was slow and expensive.
The Chinese knew how to make steel but only used it for high-end items due to the cost and time required for production (forks, knives, armor).
Bessemer Process:
Developed in the 1850s, enabling mass production of steel.
Involved blasting cold air onto iron in a furnace to facilitate chemical reactions.
Significantly reduced the price of steel, allowing for broader applications such as:
Railroad tracks
Skyscrapers (due to steel's strength)
Railroads: The DBQ to be reviewed based on the DBQ from 2018 is all about railroads.
Steam Ships:
Important for travel across oceans, rivers, and canals.
Facilitated quicker movement of goods across different climates within empires, spurring trade.
Telegraph:
Used by President Lincoln during the Civil War to communicate with generals.
Transatlantic communications were established in the 1840's using submarine cables.
While older societies like those in the Middle East and Asia continued manufacturing, their share of global manufacturing declined.
Indian Ocean trade routes persisted, and China and the Ottoman Empire continued their activities, but their global economic share decreased.
Wealth shifted towards European societies and the U.S. as they rapidly industrialized.
Russia and Japan industrialized rapidly with strong leadership-driven focus.
They embraced industrialization quickly and became powerful.
Russo-Japanese War (early 1900s) where Japan beat Russia shocked Western powers.
Russia built the Trans-Siberian Railroad (using steel technology), signaling their entry into the global economic arena, similar to the impact of the Transcontinental Railroad in the United States.