On this day, Aug. 28

1919 The streetcar strike was broken when the national union expelled local leaders; the strikers returned to work with great reluctance.

1957 Drilling began on the $17 million Fort Pitt Tunnel.

1963 More than 200,000 people listened as the Rev. Martin Luther King Jr. delivered his “I Have a Dream” speech in front of the Lincoln Memorial in Washington, D.C., as the culmination of the March on Washington for Jobs and Freedom.

1986 After 62 years, the YMCA on Wood Street, Downtown, closed its doors.

2016 Six scientists completed a yearlong Mars simulation in Hawaii, where they emerged after living in a dome in near isolation on a Mauna Loa mountain.

Some items are from Stefan Lorant’s “Pittsburgh: The Story of an American City” (digital.library.pitt.edu/chronology).

— Compiled by Rick Nowlin

Today’s birthdays: Former Defense Secretary William S. Cohen, 81. Actor David Soul, 78. Former MLB manager and player Lou Piniella, 78. Actor Barbara Bach, 75. Singer Wayne Osmond (The Osmonds), 70. Actor Daniel Stern, 64. Olympic gold medal figure skater Scott Hamilton, 63. Movie director David Fincher, 59. Country singer Shania Twain, 56. Actor Jack Black, 52. Actor Jason Priestley, 52. Olympic gold medal swimmer Janet Evans, 50. Country singer LeAnn Rimes, 39. Actor Sarah Roemer, 37. Reality TV star Alana Thompson, aka “Honey Boo Boo,” 16.

Thought for today: “The essence of immorality is the tendency to make an exception of one’s self.”