That's why it's easier to use the short-hand #title rather than say the 1st star wars movie, because it's hard to know which 1st...2nd... so on someone is referring. Here's a handy list for you in case your search browser gets broken, or (more importantly) you don't want to search and read plot spoilers...
Episode IV: A New Hope (1977)
Episode V: The Empire Strikes Back (1980)
Episode VI: Return of the Jedi (originally titled "Revenge of the Jedi," but it didn't make sense for Jedi to want revenge.... mentioning it just in case you get a snarky person with regards to the title. 1983)
Episode I: The Phantom Menace (1999)
Episode II: Attack of the Clones (2002)
Episode III: Revenge of the Sith (See... now revenge makes much more sense here.

2005)
Episode VII: The Force Awakens (2015)
I'm not as good with SW trivia as many of my colleagues, so please feel welcome to correct anything. I don't have toes.... I have space-plastic armour.

hehehe.
[EDIT: I added the dates of the original theatrical release, and you will find many many other dates for these movies because of all the special-versions that Lucas put out afterwards... for SW newbies, I don't necessarily see the value of telling you which version of Episode V to see, though I admit many of my friends would. GEEKS! love 'em.

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