Describe the theme that your timeline will focus on. what big idea will organize the events on your timeline? wy will you focus on some events from the 20th century and not others? image attached is an example.

1925: John Logie Baird in Great Britain and Édouard Belin in France publicly show their ´prototypes.

1931: Manfred Von Ardenne managed the first TV station with continuous broadcast schedules.

1941: The National Television Systems Committee (NTSC) of the United States establishes the technical standards of this media.

1951: First color television transmissions.

1960: Guillermo Gonzalez Camarena patents his color TV system.

1961: The first satellite TV transmission is made.

1979: Ted Turner connects 1350 cable systems to create the CNN chain.

1993: United States establishes the bases for the development of high definition and analog television systems.

1997: The first transmissions in high definition are made in the world.

I have taken the Television idea because, further an entertainment use, the well-used TV contributes to education and formation for society values and family meeting.

d. she conquered the black sea coast and parts of poland.

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).