"On any given day, more than 87,000 flights are in the skies in the United States. Only one-third are commercial carriers, like American, United or Southwest. On an average day, air traffic controllers handle 28,537 commercial flights (major and regional airlines), 27,178 general aviation flights (private planes), 24,548 air taxi flights (planes for hire), 5,260 military flights and 2,148 air cargo flights (Federal Express, UPS, etc.). At any given moment, roughly 5,000 planes are in the skies above the United States. In one year, controllers handle an average of 64 million takeoffs and landings." - From the National Air Traffic Controllers Association webpage

This dataset tracks commercial flights from the approximately 9000 civil airports worldwide. The day/night terminator is included as a time reference. Flight traffic picks up noticeably during daylight hours and drops off through the night. Each yellow tail is one plane in this visualization

1. The first photograph upon discovery of Machu Picchu, 1912.

2. Underwater detonation of 15 kiloton nuclear weapon.

3. Lucky British soldier shows off his damaged helmet, 1917.

4. Archduke Franz Ferdinand with his wife on the day they were assassinated by Gavrilo Princip, 28 June 1914.

5. Einstein’s desk photographed a day after his death.

6. Soviet soldier in the liberated village.

7. Soldiers raising the Soviet flag over the Reichstag, Berlin 1945.

8. Adolf Eichmann walks around the yard of his cell, Israel, April 1961.

9. Executions of Kiev Jews by German army mobile killing units, 1942.

10. Two German soldiers and their mule wearing gas masks in WWI, 1916.

11. British tanks maneuvering trenches during the Battle of Cambrai. France, 1917.

12. Erwin Rommel helps to push his stuck staff car somewhere in Northern Africa, January 1941.

13. B-32 Bomber Factory in Fort Worth, Texas, 1944.

14. Annual midnight swearing-in of Nazi SS troops, Feldherrnhalle, Munich, 1938.

15. USAAF B-25 sinks Japanese destroyer Amatsukaze off the coast of Xiamen, China, 6 April 1945.

16. Spectators standing upon tables to get a glimpse of the Versailles Treaty being signed, France, 1919.

17. Abandoned boy holding a stuffed toy animal amid ruins following German aerial bombing of London, 1940.

18. Henry Ford receiving the Grand Cross of the German Eagle from Nazi officials, 1938.

19. Germans testing a Messerschmitt Bf 109 E3, 1940.

20. Hans-Georg Henke – 16 Year Old German soldier crying.

21. A rare color photo of Adolf Hitler which shows his true eye color.

22. Execution of a German Communist in Munich, 1919.

23. Nazi rally in the Cathedral of Light, c. 1937.

24. Gadget, the first atomic bomb.

25. The last Jew in Vinnitsa, 1941.

26. The last picture of Adolf Hitler, April 30, 1945.

27. A dog being posed by a German soldier.

28. The night they ended Prohibition, December 5th 1933.

29. Liberation of Paris, August 1944.

30. The end of WW2 is celebrated in Moscow’s Red Square, May 9, 1945.

31. A German soldier with a badge on his chest in Stalingrad, 1942.

32. General George S. Patton’s dog on the day of Patton’s death on December 21st, 1945.

33. German prisoners march to Moscow after defeat at Belarus during “Operation Bagration”, 17 July 1944.

34. German troops trying to rescue what looks like a French soldier from sinking in a mud hole. Northern France, 1914-1918.

35. Nine Kings in one photo.

36. Nazis singing to encourage a boycott of the allegedly Jewish-founded Woolworths, 1933.

37. A US soldier offers his hand to a woman leaving a cave where she had hidden with her child during the battle between Japanese an.

38. A rare shot of a young Winston Churchill, 1895.

39. Eyes of Hate, A candid photograph of Goebbels after he finds out his photographer is Jewish.

40. American tank crews listen as Bernard Herzog who was liberated from the camp of Santo Tomas, Manila, Philippines.

41. U-118, a World War One submarine washed ashore on the beach at Hastings, Sussex, England.

42. A Russian adjustable mobile shield that could protect against small arms fire and shrapnel captured by the Germans, 1914.

43. Testing a bulletproof vest, 1923.

44. The Messerschmitt Me 264, its objective: being able to strike continental USA from Germany, 1942.

45. Russian soldiers prepare chlorine cylinders for a gas attack against German positions near Ilukste, 1916.

46. Gas masks for babies tested at an English hospital, 1940.

47. Nazi raising the swastika over the Acropolis, Athens.

48. German soldier dives for cover as shell explodes behind him at an artillery position, Western Front, 1917.

49. Stalin in an off-record photo by Lt. Gen. Nikolai Vlasik, the Soviet dictator’s bodyguard.

50. Control room of the UB-110 German submarine, 1918.

52. A V-1 flying bomb “buzzbomb” plunging toward central London, 1945.

53. Maori Battalion in North Africa, 1941.

54. Jesse Owens on the podium after winning the long jump at the 1936 Summer Olympics.

55. Ovation for Hitler in the Reichstag after announcing the successful Anschluss, March 1938.

56. Samuel Reshevsky, age 8, defeating several chess masters at once in France, 1920.

57. Joseph Stalin mugshot held by Okhrana, the Tsarist Secret Police, 1911.

58. The Eiffel Tower during the Nazi occupation, 1940.

59. Young German SS soldier. Date and location unknown.

60. The Cologne cathedral stands tall amidst the ruins of the city after allied bombings, 1944.

61. Laughing at Auschwitz – SS auxiliaries poses at a resort for Auschwitz personnel, 1942.

62. A German child meets her father, a WW2 soldier, for the first time since she was 1 year old, 1956.

63. Using banknotes as wallpaper during Hyperinflation, Germany 1923.

64. Opium den, Singapore, 1941.

65. Using a traditional Japanese blade, 17-year-old Otoya Yamaguchi assassinates socialist politician Inejiro Asanuma in Tokyo.