During his exile on Dagobah, Yoda remained isolated from the galaxy and ignorant of most
of the events taking place outside of his planet for over two decades, only connecting
to the outside through Jedi survivors and forthcoming Jedi by the Force as a means to
guide them.
Despite occasionally conversing with outsiders through the Force, Yoda’s location remained
entirely unknown to everyone in the galaxy, only letting it be known to Obi-Wan’s ghost
as a means of bringing the believed galaxy’s last hope Luke Skywalker to him.
While some characters have met Yoda on Dagobah during his exile, like the Starkiller clone,
none did so with the knowledge that he was the former Grandmaster of the old Jedi Order,
believing him to be a powerful crazed creature instead.
With the exception of one character, a Rebel historian and investigator named Arhul Hextrophon.
Arhul Hextrophon joined the Rebel Alliance during its early years and was tasked in preserving
its history during its efforts to overthrow the Galactic Empire. His duty involved him
maintaining the message of liberation of the Alliance and sending it to planets that could
be swayed by their cause, to combat Imperial propaganda that tried to twist the Alliance’s
ideals, and record a journal of the diaries of various rebel generals and soldiers to
be used for historical studies in the new government that would arise after the fall
of the Empire.
On top of all of this, he also found an interest in the Force as well as the Jedi of the former
Republic, going out of his way to research their history from any sources he could uncover
that the Empire had hidden.
He was so interested in learning of the Force, that he even challenged Luke Skywalker to
a practice duel in order to see the Force in action. Arhul was swiftly beaten by the
blind-folded Jedi, but got the information he sought as a result and recorded it accordingly
into his research.
This interest in the Jedi’s past eventually led him to discover some classified files
within a planet’s university’s library that suggested Dagobah being a nexus of the
Force and a planet that was rumored to have contained a powerful Force User.
Following this discovery, Arhul made his way to Dagobah in hopes of better understanding
the Force nexus of the planet and finding the rumored powerful force user.
Upon landing on the swamp planet, Arhul searched through the wilderness for a long time until
discovering Yoda’s hut and the former grandmaster himself. At first, Arhul was unaware that
the green creature he discovered was a Jedi, with Yoda initially playing the role of buffoon
like he did with Luke with their first meeting.
But Arhul, due to his previous research of the Jedi, was able to ultimately conclude
that the creature before him was indeed Yoda, the Grandmaster of the old Jedi Order. This
revelation surprised Yoda, who went on to drop the act of being a senile hermit and
seriosuly considered to wipe the mind of Arhul so the man could not reveal his location to
the galaxy.
But before the exiled Jedi could do so, Arhul begged Yoda not to, displaying his fear of
losing his memories of all the research he had done in persevering the history of the
Rebel Alliance.
This outburst convinced Yoda to not wipe the man’s mind, even becoming ashamed he even
considered it, believing it wasn’t the Jedi way to cause harm and forcing one’s will
onto others.
The two came to terms and stayed together for the next couple of days, discussing the
events that were taking place in the galaxy. Arhul informed Yoda of everything that had
happened in the galaxy since his exile, while Yoda provided some insight of the Jedi Order
before their destruction and what was true about them, and what was nonsense pushed by
Imperial Propaganda.
This was one of the few moments Yoda felt like himself, being able to talk freely as
himself to someone else in so long. After making it clear to Arhul of the necessity
of his location remaining a secret, and feeling through the force that the rebel historian
would honor his commitment to keeping it as such, Yoda let the man leave Dagobah without
wiping his mind.
Arhul did just that, ensuring Yoda’s hidden location would not be discovered by anyone,
not even telling its existence to Rebel High Command. The Rebel Historian eventually went
to the same library of the university that led him to Dagobah and destroyed all the classified
files, ensuring the Jedi Master’s safety. The only evidence of Yoda being on Dagobah
were put into Arhul’s personal notes, which he kept to himself and hoped to one day be
able to reveal his discovery once the Empire had been toppled.
Arhul later added to his Yoda notes after learning that Luke Skywalker had visited Dagobah
following the battle of Hoth.
It wouldn’t be until after the death of Palpatine over Endor and the creation of the
New Republic that Arhul likely revealed his findings on Yoda, the Jedi, and everything
else he knew of the Force. He later went on to help found a New Republic Research Center
for defense and planetary assistance. The Research Center was later set up on a small
mountain on Dagobah, which was named Mount Yoda upon Arhul’s request, segmenting Yoda’s
legacy into Dagobah for all to remember.