#30: John Albert Burr – Improved Rotary Blade for Lawn Mowers
There are so many things that we use in our day-to-day lives that many of us would be lost without. But most of the time, we don’t think about where these inventions originated or how they became the improved versions of themselves. Sometimes, we don’t even realize just how long ago these things were invented in the first place…

provided by constative.com
Many people might assume that the lawn mower many people know and love today was invented more recently than over 100 years ago… Well, it turns out that African American inventor John Albert Burr created an improved rotary blade for the lawn mower in 1899. His improved patent was designed not to get backed up by lawn clippings.