Released: 15 April 2007, 
Updated: 17 March 2018
(NICAP.org)
Quote from the UFO report (the introduction):
“This is a 35-page chronology of UFO incidents and
events for 1973, a 
major, world-wide sighting wave. Our thanks for these chronologies must go to
our documentation team: Richard Hall (the original 1973 chronology from UFOE
II), William Wise (Project Blue Book Archive), Dan Wilson (archive researcher),
Brad Sparks (Comprehensive Catalog of Project Blue Book Unknowns), and Jean
Waskiewicz (online NICAP DBase [NSID]), and Michael Swords. 
In January of 1973 I was transferred from Hillsboro , Illinois  to Mt. Vernon , Indiana , and
set up the UFO  Filter 
Center  to log UFO reports in the Midwest  for the MADAR (UFO detection) Project. The states
included in the study were: Missouri , Illinois , Indiana , Ohio , Kentucky  and Tennessee UFO  Filter  Center 
As evidence for the nuclear connection continued to
mount, world-shaking events were taking place which led to the Arab/Israeli
War, fought from October 6 to October 26. The war had far-reaching implications
for many nations.
The 1973 sighting wave was concentrated in the last
half of the year, and featured the largest number of humanoid occupant sightings
in many years. Several abductions were reported during this period (see Section
XIII, UFOE II). The sightings peaked in mid to late October, with October 17
representing perhaps one of the most extraordinary single days for
‘high-strangeness’ cases in UFO history (see Section XII). Dr. Richard Haines
provided this Table 1, 116,   Table 1,
117  of aircraft incidents in 1979 (Ref.
8).
Note: In regard to Humanoid Reports, there doesn’t
appear to be any cases as solid as a military radar-visual triangulation case,
nor any military multiple-witness incidents, nor any humanoid cases involving
radar-visual tracking, or where any astronomers or PhD scientists have seen
humanoids and UFO’s? It is important for us to list them, however, but only
those incidents where UFOs were observed at the time or supporting evidence
warrants.
NICAP Site Coordinator”
I also reported about this UFO report on 3 May 2011.
Related posts:
Map of the world (wikimedia.org)
(wikimedia.org image)
