Juneteenth may have begun in Galveston, Texas, but its significance is widespread. The holiday, which commemorates the end of slavery in Texas (on June 19, 1865), became nationally recognized in 2021 thanks to the efforts of many Black people. Opal Lee, who marched 2 ½ miles in recognition of the holiday at the age of 89, is one of the first to come to mind. And she’s not the only one. The traditions of Juneteenth have been kept alive and passed…