2020AMIGA Maps Andromeda Circumgalactic Halo—
Project AMIGA uses background quasars to map ionized gas around M31 in greater detail, showing a layered halo extending far beyond the visible stellar disk.
Historical records for International in 2020, rendered directly from the World History Database and ordered by month, day and event.
Project AMIGA uses background quasars to map ionized gas around M31 in greater detail, showing a layered halo extending far beyond the visible stellar disk.
This page is generated from stored World History Database records matching the exact country and year shown above. Exact duplicate display records are collapsed. Records without a month are listed after the monthly sections. Source provenance varies by record; formal academic citation should be checked against the relevant primary source, archive or specialist historical reference.