12/30 - open acct
1/17 - $50k deposit
1/24 - 25k AA posts (footnote: they posted on aa with a post date of 1/20, but did not actually show in the account until days later)
1/25 - cash transfered out to bank acct
1/27 - $50k deposit
1/27 - signed up for Delta
1/27 - add'l $500 deposit through Delta link (don't know if this was needed but for good measure)
1/28 - 25k Delta posts
2/2 - 25k AA posts (footnote: again, the date on my aa acct was post date of 1/27, but did not actually show in the account until days later)
2/4 - 25k Delta posts

Particular thanks to HikerT and akp for guidance!!