how the first BTC got created?

hi,
i have been thinking about it for quiet some time now.

as my understanding of how the coin is being created is by mining which its confirming transaction.

lets say we are in the first block of the chain, no one had btc cuz not transaction was made.
so no mining, no earning.

so how the first btc was create if no transaction and no mining was done?

 

I heard that when it was first started, when you'd mine the bitcoins they'd just be handed out to people who were mining it

 

Pretty sure it's like this:
Like ICO's, coin's are generated.
The genesis block probably created the coin's. BTC was probably given for free.
It's ledger technology soo it was probably written on the first block.
Tbh, I'm just spouting some ideas. Cba doing research about this because it doesn't really matter.