◎◎◎ perigee ⪢⪢
Now about
half a month later, the moon has orbited
halfway around its path and it gets to its closest point to the earth. We refer to this as perigee.
→ apogee, perihelion #bookmark
http://qindex.info/i.php?x=9985
◌◌◌ plague
Named after the emperor at the time, the Plague of Juastinian is estimated to have wiped out about
half of Europe's population.
→ Yersinia Pestis, impetus, Justinian, moniker, sanitation, catapult, Byzantine, vulnerable
http://qindex.info/i.php?x=4070