Can I convert to Judaism?

Many generations ago, my family was Jewish. Now they are Christian. They have been Christian for hundreds of years now. Can I convert back to Judaism? Would I be considered the same as someone who has no history of it? I'm just looking for information on how this is viewed in the Jewish community. Thank you.
Update: I'm not converting because my ancestors were Jewish. I'm merely mentioning it in order to see how I would be viewed in the Jewish community. I've thought of converting long before I know of my ancestry.
Update 2: *knew*............
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