It's debated; the credit is usually given to either Julia Ward Howe or Anna Jarvis.
Howe was born first, so if you're looking for initial efforts, I would go with her.
Hope this helps!
Ernest Rutherford contributed to the atomic theory by discovering that the atom is mostly empty space.
He can to that conclusion because he fired alpha particles at gold foil, which was so thin that it was only around .00004 cm thick, and while almost all shot straight through, some actually bounced back!
He likened it to shooting a 15-inch round(bullet) at tissue paper, only to have it bounce right back at you! Based on this, he theorized that the atom is mostly empty, which is why a majority of the particles passed right through, but in the very center of the atom there is a super-dense structure called a nucleus that held a majority of the atom's mass. This super-dense mass would be more than massive enough to deflect the particle, should they collide.
Susan B. Anthony <span> was an American social reformer and feminist who played a pivotal role in the women's suffrage movement. Born into a Quaker family committed to social equality, she collected anti-slavery petitions at the age of 17</span>
Answer:
there were two technological innovations that profoundly changed daily life in the 19th century: steam power and electricity. The railroad helped expand the U.S.. The telegraph, the telephone, and the typewriter brought people together that were far away. ... America began producing more steel than England.
Explanation:
