Van,Battle Of the planets aired in '79 I think.
The earliest animes are much older than robotech,which looked rather american styled to me(looks back at his Robotech2 poster on the wall,The Sentinels) yep...
What I could think of as a first anime ever would be either the 60's Astroboy or Kimba(aka Leo the king or Le Roi leo) which inspired the movie the lion King...Both by Osamu.
Go Nagai has to be the most prolifient one though with Devilman,Mazinger Z(aka Tranzor Z),Getter Robot and Violence Jack...
Leiji Matsumoto has my heart as far as the style is concerned...Like Captain Harlock,made rather slim people which gave an ouitstanding look,which one of the main characters,Toshiro,was drawn in the same style as Rigel up here...Matsumoto made also several other animes based on the style and success Captain Harlock had.
BTW:I didn't mean to offend you Arrow,but seeing you didn't know it was a manga/anime style,I thought I'd make you aware it is.Also,you made it sound as if I tried to implie you don't know anything about animes,which I didn't...If I really wanted to do so,there're many better ways,like being direct and telling you,it's all about how you take it.
Everyobdy wants to be loved,But no one loves everybody...
HEY!!! I'm the one who had 'Cyberspace' in his location on the older black forums,shame on you Rich j/k