Often, the hardest words to write in an essay are the opening ones. My favourite way to start off an essay is with a pithy quote. If you’re studying Politics, a quote from a politician can how to start a history essay very well.
Another good way to open an essay is to define any key terms in the question. If you’re feeling brave, you could open your essay with a bang by making a bold statement. An easy way to do this is to completely disagree with the question or prompt that you’ve been given. Depending on how formal an essay you’re writing, you might be able to open with an anecdote.