My step mom's 2nd husband invented Careers. He made quite a bit of money off that game.With many of you mentioning lots of board game, here are a big bunch more I remember playing back in the 1970s. Some of them are rather obscure.
Chess
Billionaire (Global investment board game)
Ulcers (Business employment board game)
Stratego (war board game)
Battleship (war board game)
Pathfinder (Battleship style board game)
High Stakes (Monopoly and casino gambling board game)
Chinese Checkers (checkers with marbles game)
Clue (Whodunnit board game)
1776 (Avalon Hill war game)
Numble (Scrabble with numbers board game)
Go for Broke (lose all your money board game)
Operation (Play pretend-doctor board game)
Careers (life achievement board game)
Stock Market (Accumulate money board game)
Trouble (Move-around-the-board board game)
Sorry (Move-around-the-board board game)
Yahtzee (Dice game)
Othello (maximize checkers board game)
Mastermind (logic board game)
Uno (rummy card game)
Po-Ke-No (Bingo card game)
Monday Night Football (football strategy game)
Water Works (make a pipeline card game)
Scrabble Sentence Cube Game (create a sentence dice game)
King Oil (drill for oil board game)
Bermuda Triangle (Avoid the storm cloud board game)
Connect Four (a vertical Tic-Tac-Toe game)
Life (Achievement and money board game)
NFL Strategy (generic football board game)
Jeopardy (home edition circa 1972)
Parchesi (Move-around-the-board board game)
Hi-Q (eliminate the pegs board game)
Fluster (crossword game)