George Stephenson's Rocket, 1829, would lead to great railroad infrastructure, which helped with city planning, made moving to the city easier, and made trade and large-scale commerce much better. For example, now placing factories in population centers made more sense. (I barely understand why myself, but okay)
1858
This is a record player. Useful for music, instructions, etc.,
Alexander Graham Bell's telephone (1876)
This would allow for long-distance communication
Liverpool and Manchester Railway (1830)
From Cape Cod, Massachusetts.
Karl Benz's internal-combustion automobile engine (1885)
Invented the incandescent lamp. Though he was, in general, prone to rude tendencies.
Gugliemo Marconi (1896)'s wireless telegraph patent
Useful for, like, ship distress calls. Say, for example, the one the Titanic sent out.
James Watt's efficient steam engine (1765)
Like fifty years later, they finally came out with a steam engine with a condensing chamber, making it more efficient. Also a pretty big deal.
First steam-powered mill (1779)
Crompton's "mule" + Spinning jenny and water frame fully automated weaving process. Yeah.
First commercially successful (though kind of clumsy) steam engine, used to pump water out of coal mines. Big deal, since we've just unlocked a new power source.
Gasoline refinement
First occurred in 1850. Gasoline is an important fuel source.
First transatlantic cable completed
Michael Faraday (1831)'s discovery of electromagnetic currents
Hiram Maxim's machine gun (1884)
Mass slaughter is now possible, begins mechanization of warfare. Unfortunately, as some predicted, his machine gun did not prevent war — people still fought, despite these monsters being on the battlefield.
Large suspension bridge, "triumph of engineering."
Alfred Nobel's dynamite (1867)
First high explosive that could be safely handled. Useful for mining and clearing areas for infrastructure.
Under the Thames
James Hargreaves (1765)'s spinning jenny
Eli Whitney (1793)'s cotton gin
Cartwright's power loom (1787)
According to wikipedia:
Singer's first practical sewing machine (1851)
Allowed for more sewing, including at-home
Tremendously helped with making weaving easier, used in the putting-out industry at first.
First skyscraper (10 stories tall) (in Chicago)
1883
Daguerre's daguerrotype (1838)
Early form of photography
Jethro Tull (1708)'s mechanical seed drill
Joseph Monier (1849)
Reinforced Concrete
Robert Fulton (1807)'s Clermont
The first successful steamboat. Like the locomotive, made trade so, so much better. For example, now the US could leverage its advantage in having the Mississippi river.
