#OTD in 1933, R. Buckminster Fuller, American inventor, applied for a patent for what he called his "Dymaxion Car." The word Dymaxion was coined by Fuller as a combination of “dynamic,” “maximum,” and “ion.” (Image: Chicago History Museum/Getty Images) #ThisDayInAutoHeritage

WEEKEND ALERT - This Sunday from 1-5 pm, the @PackardPGrounds in Shelby Twp. presents its annual Fall Open House. For more information, click https://t.co/VnxvNK7aOB #ExploreMotorCities

#OTD in 1973, the Organization of Petroleum Exporting Countries (OPEC) declared their decision to cut oil exports to the US and other countries who provided assistance to Israel during the recent Yom Kippur War, triggering the end of the era of cheap gas. #ThisDayInAutoHeritage

TOMORROW at 2 pm, the Michigan Military Technical & Historical Society in Eastpointe hosts a special Dedication Ceremony for its newly installed 20-ton tank monument outside the building. Museum admission will be FREE all weekend! More https://t.co/qnaw3oHnKN #ExploreMotorCities

#OTD in 1958, @Chevrolet began to sell a car-truck hybrid called the El Camino. Made to counter @Ford's Ranchero, intro'd 2 years earlier, El Camino was a sedan-pickup combo built on an Impala body, including its renowned “cat’s eye” taillights & rear fins. #ThisDayInAutoHeritage

What will the next @Chevrolet Corvette look like? Get the scoop in our latest #StoryoftheWeek https://t.co/JfLQrraKb0

#OTD in 1991, the new @Chrysler Technology Center (upper left) was dedicated in Auburn Hills, MI. Chrysler Chairman Lee Iacocca led the ceremony in the main lobby of the center along w/Michigan Governor John Engler & Robert Grusnick, mayor of Auburn Hills. #ThisDayInAutoHeritage

PROGRAM ALERT - This Thursday from 5-8 pm, @StahlsAuto's Motors & Music Experience presents their next "Night at the Museum." Get ready for an unforgettable evening, as this event brings the collection to life after hours! More info: https://t.co/MZMw1wotxy #ExploreMotorCities

#OTD in 1857, engineer & inventor Elwood Haynes was born in Portland, IN. He designed one of the 1st American automobiles, the Haynes “Pioneer.” On July 4, 1894, he took his vehicle out for its debut drive & was inducted into the Auto Hall of Fame in 2015. #ThisDayInAutoHeritage

#OTD in 1968, the first race at the @MISpeedway in Brooklyn was held. The track sits on more than 1,400 acres in the Irish Hills of Michigan. Groundbreaking took place on September 28, 1967. Over 2.5 million yards of dirt were moved to form the oval. #ThisDayInAutoHeritage

#OTD in 1915, James Couzens resigned as a VP & GM of @Ford, but kept his seat on the board of directors. 4 years later, he sold his shares for $30M & was elected mayor of Detroit, serving until 1922 when he was appointed to the US Senate to fill a vacancy. #ThisDayInAutoHeritage

WEEKEND ALERT, PT III - This Sunday at 2 pm, the Michigan Military Technical & Historical Society in Eastpointe presents "Women Engineers Moved the Motor City: Female Automotive Pioneers in Detroit" w/presenter Troy Eller English sharing the story of Virginia Sink (below).

WEEKEND ALERT, PT II - TODAY from 1 to 4 pm, @StahlsAuto Motors & Music Experience presents their annual Trunk or Treat event. Bring the whole family for a fun-filled afternoon of candy, costumes & spooky surprises, all indoors! Info: https://t.co/afKLedH2QJ #ExploreMotorCities

WEEKEND ALERT - Tomorrow from 8 to 11 am, the @M1Concourse in Pontiac hosts their monthly Cars & Coffee event. This month's featured cars are European marques. This event is family-friendly, & tickets are $20/car. For more info: https://t.co/3C9zBh3PUs #ExploreMotorCities

#OTD in 1985, @Ford bought Sperry's New Holland unit, the world's largest producer of specialty farm equipment, for $330M. Ford's involvement in farming dated back to Henry Ford's building a line of tractors under the Fordson brand beginning in the 1910s. #ThisDayInAutoHeritage

MICHIGAN AUTO HERITAGE DAY PARTNER SPOTLIGHT - Our final of 15 partners is @StahlsAuto in New Baltimore (now known as the Stahl's Motors & Music Experience, offering a free sticker to guests mentioning Michigan Auto Heritage Day on Saturday, October 11. https://t.co/E9KixXY7Mk

MICHIGAN AUTO HERITAGE DAY PARTNER SPOTLIGHT - Our 14th of 15 promotional partners is the ROUSH Automotive Collection in Livonia, which is offering 15% off merchandise in their gift shop from October 9-12. More info: https://t.co/E9KixXY7Mk. #ExploreMotorCities

MICHIGAN AUTO HERITAGE DAY PARTNER SPOTLIGHT - Our 13th of 15 promotional partners is the Pontiac Transportation Museum, which is offering FREE admission TODAY thru Sunday, October 12. Learn more about all the participating partners: https://t.co/E9KixXY7Mk. #ExploreMotorCities

Today is Michigan Auto Heritage Day! Watch this special message from our state's @GovWhitmer: https://t.co/Sd27Fk9pYc Visit our website for all the details on the 15 partner attractions offering discounts and giveaways starting today & continuing thru Sunday #ExploreMotorCities

MICHIGAN AUTO HERITAGE DAY PARTNER SPOTLIGHT - Our 12th of 15 promotional partners is the @SloanMuseum of Discovery in Flint, which is offering 50% off general admission & 10% off gift shop merchandise from October 9-12. More info: https://t.co/E9KixXY7Mk. #ExploreMotorCities