Answer:
Star Wars is arguably the most important and most adored film franchise in the history of time. There were many contributing factors to why it was so loved by its viewers but perhaps the main reason was its special effects. Now the first movie released in the late 70's. while they may not look like much nowadays, the special effects in that movie were unlike anything anyone had ever seen before! Combine that with the imagination of George Lucas and John Williams's score, and there's no wonder why it's a timeless masterpiece!
Happy 1 year anniversary to your question btw :)