article_snippet.sent: a world-changing event is called a Tetrad since a world-changing event involves four successive total blood red lunar eclipses each followed by six full moons.
article_snippet.sent: The ‘Tetrad’ of four alignments within two years, happens just a few times in every 2,000 years.
article_snippet.sent: The 'Tetrad,' cycle began in April last year.
article_snippet.sent: The 'Tetrad,' cycle began in April last year involves a series of four dark red 'blood moons.'
article_snippet.sent: The final blood moon of the Tetrad will occur on September 28 and there will be nine sets of some in the 21st century.
article_snippet.sent: But Nasa has previously said that the Tetrad only happened three times in the past 500 years.
article_snippet.sent: According to Mr Hagee, each time the Tetrad has happened during that time, there has been a significant religious event accompanied with the Tetrad.
article_snippet.sent: Mr Hagee said that the first of the Tetrad blood moons happened on April 15, right in the middle of the Jewish holiday of Passover.
article_snippet.sent: The final blood moon of the Tetrad will occur on September 28 and there will be nine sets of the Tetrad in the 21st century.
article_snippet.sent: The final blood moon of the Tetrad is seen glowing red and partially obscured in shadow as The final blood moon of the Tetrad rises during a total lunar eclipse from Kathmandu, Nepal in October .
highlights_snippet.sent: It's the third blood moon in the 'Tetrad' that will end in September .
  