Mundane is the branch of astrology that studies the correlation of celestial phenomenon to large scale events that impact many people. Traditionally, astrologers have used the moment of the Solstices and Equinoxes (the changing of the seasons), Solar Ingresses (Sun changing signs) and the New and Full Moons, as moments that can lend insight into larger events that affect us all.

Full Moon Eclipse of January 20, 1981 from the Astro*Carto*Graphy Source Book of Mundane Maps for 1981 with lines activating Algeria highlighted in yellow

On January 1, 1981, I was interviewed by Channel 7 TV news, San Francisco for the usual astrological predictions for the next year...
Realizing that I'd be asked to forecast the end of the Iranian hostage crisis, I prepared for the interview by perusing the next several lunations in The Source Book of Mundane Maps. I noticed that the map for the Full Moon Eclipse of January 20th had several planetary lines activating Algeria which, at the time, was acting as a go-between in negotiations to free the hostages.

Here's an excerpt of the interview:
Channel 7: "What about Iran? Do you see anything having to do with the hostages?"
Nicki: "There's a Full Moon on January 20th. There's also an eclipse. At that time (according to the Astro*Carto*Graphy map), Algeria seems to be focalized, and that says to me that potentially something may develop with Iran since Algeria and Iran are so tied together at this point."

The hostages were released...
That Full Moon that I referred to occurred at at 11:39 PM PST on January 19, 1981. After spending more than a year in custody, the hostages were released at 9:30 AM PST on January 21, 1981, less than a day and a half later. They were first flown to Algeria, and then on to Germany for their debriefing.

Listen to the complete interview...