From June 1st (9:00 GMT) until June 5th (9:00 GMT)
From June 1st until June 30th you’ll be offered 8 tasks consecutively. Completing each will reward you with a trophy, completing all of them earns you a unique player icon.
You can immediately purchase the profile icon for Golden Eagles until July 3rd, 11:30 GMT without completing tasks. Click Nickname → Achievements → Pages of History (June).