In what field did significant technological innovation occur in the late 1800s? building materials transportation communications all of the above

frederick the great and the war of austrian succession. frederick william of brandenburg-prussia trained his son, frederick, to be a hardy soldier. he also declared himself king of bohemia, and maria theresa sent troops to retake bohemia. in august he led 80,000 of these men across the frontier into bohemia, his

i think that it would be tenth of the first