How games in MLB history have been forfeited due 2 various reasons?

Question

please give date(s) if possible

Answer 1

Since 1970 there have been 5

MLB forfeits since 1970

    * At the Washington Senators' final game at RFK Stadium against the New York Yankees on September 30, 1971, fans angered by the team's impending move (to Dallas-Fort Worth, where the Senators were to become the Texas Rangers in 1972) stormed the field with two outs in the bottom of the ninth inning and vandalized the stadium.[1]

    * Ten Cent Beer Night: A promotion held by the Cleveland Indians on June 4, 1974 backfired when intoxicated Cleveland fans jumped onto the field and attacked Texas Rangers outfielder Jeff Burroughs. This led to a riot in which the drunken and rowdy fans, armed with an array of debris (including chunks of the stadium seating), brawled with players from both teams as well as with staff members. Umpires declared a forfeit win by Texas.

    * The next forfeiture in Major League Baseball took place during the September 15, 1977 game between the Baltimore Orioles and Toronto Blue Jays. Orioles manager Earl Weaver pulled his team off the field after being ejected over a dispute regarding the use of a tarp in the bullpen at Exhibition Stadium.

    * Disco Demolition Night: On July 12, 1979, the Chicago White Sox held a game in which Chicago radio personality Steve Dahl came onto the field to blow up a box full of disco records between games of a doubleheader. Rowdy and intoxicated fans, who had packed Comiskey Park beyond capacity, immediately stormed the field, engaged in various acts of vandalism and theft, and refused to leave the field until the arrival of Chicago Police in full riot gear. Umpires postponed the game. American League President Lee MacPhail later declared the second game of the doubleheader a forfeit victory for the visiting Detroit Tigers.

    * On August 10, 1995, the St. Louis Cardinals were visiting the Los Angeles Dodgers, and leading the game 2-1 as the Dodgers came to bat in the bottom of the 9th inning. The Dodgers had given away thousands of baseballs to fans coming to the game as a promotion. The first batter, Raúl Mondesí, was called out on strikes and then ejected by home plate umpire Jim Quick for arguing, as was Dodger manager Tommy Lasorda immediately after. The crowd became agitated, and soon Dodger fans began throwing baseballs onto the field of play. Because of this dangerous situation for the visiting team, the Cardinals left the field and the baseballs were removed, but when the fans started throwing balls again after the Cardinals came back onto the field, the umpires declared a forfeit by the Dodgers.

Answer 2

white sox had to forfeit a game july 12 1979 due to disco burning night, they took a bunch of records and set them ablaze and the stadium rioted and they refused to take the field in turn forfeiting

Answer 3

I heard one on the radio in about 1975. Texas Rangers at Cleveland. There was a beanball war going on between the two teams and it was Nickel Beer Night, so the crowd was ugly. Late in the game, some fans rushed the field and attacked or at least threatened a Texas outfielder. Texas' bench cleared, they drove the fans away, and the umpires gave a forfeit win to Texas.  

Answer 4

Forfeits by decade

1870: 11

1880: 34

1890: 53

1900: 23

1910: 5

1920: 3

1930: 1

1940: 3

1950: 1

1960: 0

1970: 4

1980: 0

1990: 1