OG claimed the Aegis after winning
They reclaimed it after their 2nd win at
Of course, we didn't have a TI last year due to the pandemic.
Today, 21st May 2021, marks the day that OG have held onto the Aegis for 1000 days.
By the time the TI10 grand final takes place on 15th August, 2021 (assuming another team wins the tournament), they will have held onto it for 1086 days.
Note: I'm aware its terrible timing for this milestone to occur today, given the ongoing drama surrounding OG. Sad as it might be, I'm merely announcing that the milestone has been reached.
Source: https://www.reddit.com/r/DotA2/comments/nhql8b/og_have_now_held_onto_the_aegis_of_champions_for/