In addition to TRON, there are other platforms with similar functionality to Ethereum - Cardano, Stellar, EOS, NEO, IOTA, etc. The developers of these networks believe that their platform has the potential to become the main infrastructure for decentralized applications and smart contracts.
Ethereum
The Ethereum network was invented by Vitalik Buterin in 2013, and launched in 2014, after an ICO round, when about $18 million ware raised. The full version of the Ethereum network was launched on July 30, 2015