The first Jedi was Kaja Sinis of Coruscant
The X-wing & the ARC-170 are the same, so they equal each other
Darth Nihilius's species is unknown
Yoda is a Whill
The Sith were discovered before the Order of the Jedi Bendu Knights existed. In terms of Jedi vs. Dark Jedi- the Jedi came first. The Sith & the Dark Jedi aren't the same, In fact the ony reason they use the Dark Jedi use the name Sith is because the Dark Jedi invaded the Sith homeworld-Korriban.
Who was killed in Order 66?- Cin Drallig, Jocasta Nu, Shaak Ti, everyone in the Jedi Temple, Ki-Adi-Mundi, Aayla Secura, Barriss Offee, Luminara Unduli, Plo Koon, Stass Allie, & billions more.
The 'Lost Twenty' are Count Dooku & Darth Ruin. The others are unknown, but members of the Confederacy of Independent Systems are: Count Dooku (Head of State and Government), Darth Sidious (Secret De facto Leader), General Grievous (Supreme Commander), Sev'rance Tann (Chiss-Dark Jedi General), Nute Gunray (Viceroy of the Trade Federation), Wat Tambor (Foreman of the Techno Union), Shu Mai (President of the Commerce Guild), San Hill (Chairman of the InterGalactic Banking Clan), Passel Argente (Magistrate of the Corporate Alliance, Denaria Kee & Twink Kee (Passel Argente's two aides), Poggle the Lesser (Archduke of Geonosis), Po Nudo (Senator of Ando), Rune Hako, Lott Dod, Gilramos Libkath, General OOM-9, Tikkes, Toonbuck Toora, Durge, Jango Fett, Cydon Prax, Boba Fett, Alto Stratus, Commander Merai, Qi Zhu, & Sun Fac
Yoda, Obi-Wan Kenobi, Luke Skywalker (future Jedi), & of course.....Anakin Skywalker. Those are the ony ones I know of that survived. There maybe more, though.
General Greivous's recorded kills are: Daakman Barrek, Soon Bayts, Roron Corobb, T'chooka D'oon, Foul Moudama, Adi Gallia, Sha'a Gi, Jmmaar, Nystammall, Puroth, Tarr Seirr.
Princess Leia is 1.5 meters.
Yoda does not have a middle name.
Dantius is Palpatine's first name
Jard is Count Dooku's first name
Jedi Master Tyvokka was the name of the legendary Jedi Wookie.
Jacen Solo (male), Jaina Solo (female), & Anakin Solo (male)- Han Solo & Princess Leia's children.
Anakin Skywalker kills: Nute Gunray, Wat Tambor, Shu Mai, San Hill, Passel Argente, Poggle the Lesser, & Po Nudo.
Sidious is in fact human.
The seven lightsaber forms are:Form I, Form II, Form III, Form IV, Form V, Form VI, & Form VII. Other forms are: Form VIII, Form IX, Form X, Form XI, & Form "Zero".
Lucasfilm mentions some EU info.