5 oraciones de cada uno who: what: where johannes Gutenberg the printing press germany Thomas Alva Edinson the electric lighting system United states Karl Benz the motors cars Germany Alexander Fleming the Penicillicin England Helen Murray Free the glucose test United states Robert Noyce and Jack kilby the microchip
adriacras
Who invented the electric lighting? where did thomas alva edinson born ? what thing thomas alva invented? who invented the penicillicin? where did karl benz born?
where did thomas alva edinson born ?
what thing thomas alva invented?
who invented the penicillicin?
where did karl benz born?