More facts are needed because general harassment is not illegal. In order to have a claim, you must be harassed because a protected category such as race, age, disability, etc.
More details would have to be known regarding the harassment and retaliation to determine whether or not you have any viable claims.
From the facts you have presented thus far, its seems as though you may have claims against your former employer for harassment, wrongful termination, and retaliation. You need to seek the advice of an employment attorney in your area.
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In California, an employer is prohibited from discriminating against an employee based on that employee’s race, national origin, gender, age, or disability, among other traits. More facts about your specific situation are necessary to provide a full legal analysis. If you believe that you were harassed by your boss for any of the above reasons, you should contact an experienced employment law attorney and provide that attorney with all the facts surrounding your specific situation in order to gauge your legal options in this matter.