As the name suggests, the Streams API allows you to “stream” events, logs, transactions, etc., to your dapp once you integrate it. Therefore, fetching historical data is not possible, since the data syncs after you integrate the Streams API into your application. For a more in-depth explanation, you can dive deep into our documentation here: https://docs.moralis.com/streams-api/evm#what-is-the-streams-api