Historical biography archive · Updated 2026-11-03

Wendy Laurel Freedman Biography and Timeline

Follow Wendy Laurel Freedman through 3 dated historical records for United States of America.

Wendy Laurel Freedman, historical timeline

A chronological timeline drawn from matching World History Database records.

3Distinct records
1 of 1Page
1993–2022Years on this page

1993

M81 Cepheid Distance

Science / Astronomy

Freedman leads Hubble Cepheid measurements that refine the distance to galaxy M81 and improve estimates of the universe's age.

2020

Hubble Constant

Astronomer · Chicago · Science / Astronomy

Refines distance ladder measurements that test the expansion history of the Big Bang universe.

Role range: 1957-

2022

Hubble Constant

Astronomer · Carnegie Observatories · Science / Astronomy

Freedman compares alternative distance indicators to investigate the Hubble constant tension

Records, sources and methodology

These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.