code: public EthBlock getFirstBlock(boolean includeTransactions)
      {
          try
          {
              return web3j.ethGetBlockByNumber(DefaultBlockParameterName.EARLIEST, includeTransactions).send();
          }
          catch (IOException ex)
          {
              LOGGER.error("Not able to find the EARLIEST block. ", ex);
              throw new KunderaException("Not able to find the EARLIEST block. ", ex);
          }
  
      }
docs: Gets the first block.
  
  @param includeTransactions
  the include transactions
  @return the first block