“We came to the conclusion that our data consisting of prehistoric three Neolithic genomes and DNA from thousands of modern dogs from across the world supported only a single domestication event from a group of wolves somewhere in Eurasia sometime between 20,000 to 40,000 years ago,” co-author Krishna Veeramah, an assistant professor of ecology and evolution at Stony Brook University, told Gizmodo. “In addition, most of the dogs people keep as pets today are likely genetically the descendants of the dogs that lived amongst the first European farmers 7,000 years ago, and perhaps even as far back as 14,000 years ago when people were still practicing a hunter-gatherer lifestyle.”
The earliest known train songs date to two years before the first public railway began operating in the United States . "The Carrollton March", copyrighted July 1, 1828, was composed by Arthur Clifton to commemorate the groundbreaking of the Baltimore & Ohio Railroad . Another song written for the occasion, "Rail Road March" by Charles Meineke, was copyrighted two days after Clifton's, one day before the July 4 ceremonies. The number of songs that have appeared since then is impossible to determine, not only because of the difficulties in documenting the songs but also in defining the genre. 
He's nearly done with his math homework for the day when the reporter's voice fizzles out. At first he doesn't notice, but then the static blares, and his pencil jerks and scores a dark line on his paper. Grumbling to himself, he shoots the TV a scowl. The screen blinks black, then static. The whiteness falters and shorts out, and for a split second it looks like the picture might be coming back. Or... a picture, anyway. It doesn't look much like the news. It looks like a video of an empty room, but it blinks out too rapidly for Izuku to tell for sure. As he watches, the image breaks up and gives way to static once more.