The US Administration View
A US-only subset of the dataset, bucketed by the presidential administration in office at the date of appointment. The home page's universal five-year view applies one global granularity to a dataset spanning five continents. The administration view applies a granularity that actually matches the appointment mechanism for the US subset.
What is in scope
US institutions whose senior officers are nominated by the President of the United States: Supreme Court justices, Cabinet secretaries (State, Treasury, Justice, Homeland Security), intelligence-agency directors (CIA, CISA), regulatory-agency directors (CDC, NIH, FDA), heads of military service branches (Coast Guard) and unified combatant commands, and the Federal Reserve chair. Universities, corporate CEOs, and other board-selected positions are not in this view because they are not administration-driven appointments.
What the view shows
Three patterns are visible.
The pattern is bipartisan but accelerates
First-woman events occur under presidents of both parties across the entire 1981–2025 window the dataset covers. The Reagan, G.W. Bush, and Trump I administrations each registered events. The Clinton, Obama, and Biden administrations registered more. The pattern holds as a binary — firsts under both parties — but the rate is asymmetric.
The asymmetry is partly explained by tenure: 8-year administrations have twice the time of 4-year administrations, and the Reagan (8 years) / Clinton (8 years) / G.W. Bush (8 years) / Obama (8 years) sequence accumulates differently than the 4-year administrations that follow. Normalised per administration year, the picture is somewhat flatter than the raw counts suggest. But Biden's 9 events in four years is a rate the dataset does not record under any prior administration of either party.
The Biden cluster is January-2021-heavy
Of the 9 first-woman appointments under the Biden administration in the US-political subset, 6 had start dates in the first 12 months of the administration. Walensky at the CDC (20 January 2021), Woodcock acting at the FDA (20 January 2021), Yellen at Treasury (26 January 2021), Easterly at CISA (12 July 2021), Richardson at SOUTHCOM (29 October 2021), with the remaining events spread across 2022 and 2023. The administration came in with a slate of first-woman appointees ready for confirmation.
The regulatory-agency cluster analysis discusses the public-health regulatory sub-pattern of this Biden-cluster in detail.
State Department's three-administration run
The dataset's most distinctive single-institution pattern in the US political subset is the State Department's run of three consecutive women Secretaries of State across three administrations and both parties: Albright (Clinton, 1997–2001), Rice (G.W. Bush, 2005–2009), Clinton (Obama, 2009–2013). Three appointments, three confirmations, three administrations, and twelve consecutive years with a woman in the role. No other US Cabinet department has had a comparable run.
The pattern is structurally interesting because each appointment was a separate decision by a different president, with separate Senate confirmation, against the standard background of nationwide political polarisation. The State Department first-woman line is therefore one of the dataset's clearest examples of a sustained institutional pattern that survived multiple turnovers of executive control.
What the view does not show
It does not show the upstream mechanisms that produced the candidate pool from which any of these appointments was drawn. The academia domain documents the pipeline-institution feminisation that began with Holborn Gray at Chicago in 1978 and ran through Faust at Harvard in 2007. By the Obama administration's first term in 2009, the Ivy and equivalent universities had had first-woman presidents at five major institutions; the candidate pool was substantially fuller than it had been under Clinton. The administration view is the downstream half of the pipeline argument.
It also does not show non-US first-woman events that happened contemporaneously and are not driven by US administrations. The EU institutional cluster, the Latin American electoral wave, the African post-2010 sequence, and the Asian first-woman heads of state all unfold on different mechanisms and timelines. The administration view is one slice of the data; the home page chart shows the global picture.