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Oxygen
This was when oxygen was first discovered as a gas. This was big because it said there was more then one gas in the air. -
battery
Alessandro Volta invented the first battery. This was huge because this gave people energy that could move (somewhat) -
Electromagnet
Sturgeon William invents the first electromantet -
Magnetic field
In the year 1820 Oersted Hans made published he first concrete evidence that electricity and magnets can affect each other when he put a compass next to an electrical wire -
Urea
This was the first organic compound that was created from inorganic compounds. This was a big breakthrough because at the time they were viewed as two different things. -
Dynamite
This was when dynamite was first created and made an explosive entrance into existence. -
The periodic table
This was the day that Dimitri Mendelev created the first modern peridoc table -
Atomic Theory
Was when the modern atomic theory started to develop. This was the first step to the atomic theory that we have today -
Electron
J.J. Tomson discovers the electron and wins the Nobel prize it cahnged the way that people looked at atoms from that point on -
An atomic problem
This was when the first atomic was tested and created in Alamogordo dessert by the Manhattan project
