I'm interested in using the Tweets in a Complex Networks research project for which I've to collect a good amount of tweets(unbiased sample of tweets) that're related to a particular event, for example, say Boston Bombing. I need to collect the tweets that're related to this event from the event date to current date.
Tried Search API and got to know that I can't retrieve tweets older than a week. I've a small doubt regarding Streaming API, does Streaming API allow you to get older tweets and not real-time tweets. Also, I don't need tweets that're of a particular user.
Is there any way that I can collect the necessary tweets? If there aren't any, can you give me any other archiving sources that I can use?
Thanks a lot.