What is wrong speech according to Buddhism?

Is something a lie if I don’t have bad or evil intentions but what I said turns out to be false? I’m trying to protect my five precepts but sometimes when I say something it turns out to be false but I just said what I know at that time. I wasn’t trying to deceive or tell lies. I just said what I know but I found out later that I was wrong. So is that a lie? I didn’t have any bad intentions. I just said what I know and I found out later that it was false.