• Allow to log information on the blockchain which can be access by external sources such as frontend-app, other contracts, etc.
• The smart contract need to emit the event to send to the external sources.
• It can be use for debugging, indexing or triggering external action on the contract.

contract EventsEcample {
	// event is create with the parameter it req to emit with
	event Transfer(address indexed from, address indexed to, uint value)
	// here address of both from and to are indexed , so it would be easy to search 
	// the trnsaction by the address
	
	function sendEth(address _to, uint _value) public {
			// logic for send the eth to the acc
			
			// the event is emit
			// whenever the fn is called it emit the infromation to external source 
			emit(msg.sender, _to, _value)
	}
}