Horizon db / history not saving the 1st ledger (standalone network)

[samBrba]

I had a lot of difficulties to set up my private network but it works now. However i spent lot of time trying to understand why the Horizon API can't find the accounts/transactions created in the "genesis block". The answer was that the history started to ingest only at the 2nd ledger, so I had to use the command "horizon db rebase " to be able to have all the transactions/operations and accounts in the horizon database. Do not use the option "--newdb" before to do "horizon db rebase" or it will delete the genesis block from databases.