One of them has an orbit of 138 years, and the other of 796 years.
THey last time they where both inside the solar system was in 1344-46 if i“m not wrong, and before that, was in 522AD.
In both times earth was afflicted with some kind of strange phenomena, that the peoples called pleagues, that killed 1/3 of earths populations, in all the continents, no just europe.
The second planet, is not a planet, but somekind of strange object that has a surface of fire, in the words of the ancients, so both him and i believe that is a Red Dwarf Star, the sister of our Sun, because our solar system was a binary system, 96% of all the star system are binaries, in actual astronomical knowledge.
Jean Pierre Garnier Mallet, the Physicist that created the Doubling Theory, predicted that some 40 or 30 years ago, when he published his research, when 4% of the solar systems where found to be binaries.
The planet that have the 796 orbit time, stays inside the solar system for 60 years, it enters, causes a calamity, then 60 years pass, and it goes out, causing another calamity, of even greater proportion, this is what happened in 1344, when the Black Pleague was unleashed.
Ive watch all the 400 videos of Jason Breshears 2 times now, and i will watch a third, when i have time, but since i watch it in 2x speed, some dates i can“t fix in my mind, but he has some very good charts, where he places the appearances of the two bodies, and the respective years, and the disasters that happened.
You will find that the first was in 522, when the Justinian Pleague devasted the Eastern Empire, and also china, india, and africa, and the second in 1344, when the black death did the same, taking a toll from the Europeans.
I can“t find a good picture of the chart to place here for you, but you can find it in his most recent 10 videos.