Sometimes dates are just data-points.  However, sometimes data-points help structure information timelines showing a connection between two seemingly disparate events.  When this happens, dates start to tell a story.
The CIA operative “whistle-blower” letter to House Intelligence Committee Chairman Adam Schiff, and Senate Intel Chair Richard Burr, was on August 12th (link).  Now here’s Speaker Pelosi’s modified House rules for impeachment [116th Congress]:
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Quite a coincidence?