Yesterday I was in excitement because It was my friends birthday but then I got into an argument and it was very pleasant because I done an experiment and it didn’t work
<span>And in imagination he began to recall the best moments of his pleasant life. But strange to say none of those best moments of his pleasant life now seemed at all what they had then seemed—none of them except the first recollections of childhood.</span>
Extra words in a sentence that add detail and are set off by commas are called nonessential elements. This is because they are not essential to the sentence and story, they are simply an added bonus, without them the sentence still makes sense.