The question considered hereâhow does population growth affect the direction. and magnitude of economic change today as world population approaches 6 billionâis. germane to a key argument invoked to defend international population assistance. programs since their inception in the early 1960s.
Late June-July 1971: Nixon Authorizes âPlumbers,â Orders Media Leaks to Smear Ellsberg. President Nixon authorizes the creation of a âspecial investigations unit,â later nicknamed the âPlumbers,â to root out and seal media leaks.
From 1829 to 1870, many printing or typing machines were patented by inventors in Europe and America, but none went into commercial production. 1  American Charles Thurber developed multiple patents, of which his first in 1843 was developed as an aid to the blind, such as the 1845 Chirographer.