Avengers (Vol 1 1963) Issues 51-100

Roy Thomas continued his tenure as the writer of The Avengers through to issue #100 (1968-1972), predominantly collaborating with artist John Buscema. Their work together defined a significant era for the series, where the visual storytelling matched the epic scale of Thomas's plots. During this period, the Avengers' roster frequently included Thor, Iron Man, The Vision, Scarlet Witch, and Black Panther, among others. This blend of classic and newer members allowed for rich character development and interwoven story arcs that explored both personal dilemmas and grand superhero battles, establishing long-standing themes and dynamics within the team. Key issues include;

#52 - 1st appearance of the Grim Reaper, Black Panther joins the Avengers
#53 - 1st Xmen Guest Appearance
#54 - 1st appearance of new Masters of Evil (Ultron, Whirlwind, Klaw, Melter, Radioactive Man), 1st cameo appearance of Ultron
#55 - 1st full appearance of Ultron
#57 - 1st appearance of Vision, 2nd appearance of Ultron
#58 - 2nd appearance & origin of Vision, Vision joins The Avengers
#59 - 1st appearance of Yellow Jacket (Hank Pym)
#60 - Marriage of Yellow Jacket (Hank Pym) & Wasp (Janet Van Dyne), 1st appearance of Doctor Strange in Avengers title
#62 -
1st appearance of MBaku & WKabi                #63 - 1st appearance of Clint Barton as Goliath
#69 - 1st appearance of Grandmaster, 1st cameo team appearance of Squadron Sinister
#70 - 1st full team appearance & origin of Squadron Sinister (Hyperion, Dr. Spectrum, Nighthawk, Whizzer)
#71 - 1st appearance of The Invaders, Black Knight joins The Avengers
#72 - 1st team appearance of the Zodiac
#78 - 1st team appearance of Lethal Legion. 2nd appearance of MBaku
#80 - 1st appearance & origin of Red Wolf              #83 - 1st appearance of Valkyrie
#85 - 1st team appearance of the Squadron Supreme (Hyperion, Nighthawk, American Eagle, Golden Archer, Lady Lark, Tom Thumb)
#87 - Origin of Black Panther                                    #98 - Clint Barton becomes Hawkeye