Leda And the Swan

I am doing an assignment at school and i was hoping i could get some words of advice or inspiration form these forums.I will be looking at 3 different questions on William Butler Yeats poetry mostly based on the poem Leda and the swan here they are

What events/situations inspired this poem?

What influences did it have?

What are some alternate Views on this poem?

Any help would be appreciated but please keep the language understandable as i am only a 16 year doing lvl 2 english.Also any helpful sites or information would be also greatly appreciated

thanks!