"The history of blacks in American History is scattered and piecemeal."
If you meany the representation of history in the public sphere,then I agree, but if you mean actual events, I disagree in the strongest possible terms.
From the very first casualty of the struggle that became the American Revolution, Crispus Attucks, to the The First Rhode Island regiment, an all black unit in Washington's Army, to The Twenty Sixth U. S. Infantry Regiment in the War of 1812, to Joe, William Travis' slave and survivor of the Alamo, to various freedmen in the Mexican War, to the 24 black soldiers awarded the Congressional Medal of Honor in the Civil War, to the 10th Calvary battling with Geronimo and later under John "Black Jack" Pershing charging up San Juan Hill in the Spanish American War, to the 171 winners of the Croix De Guerre in WWI, to units like the Tuskegee Airmen and The 761ST Tank Battalion, known as the Black Panther Tank Battalion, that landed on Omaha Beach and later fought under George Patton, there is plenty of Black History within the greater context of American History. A person doesn't have to read crazy stories about jet aircraft flying around the pyramids to learn Black History, be it in February or any other month.