3) English. English used to be the second-most common language, but Spanish-speakers have increased much more rapidly over the past 15 years. Still, scholars have named English the worldâs âmost influential language,â due to the number of speakers (360 million) and the number of countries in which it is spoken.
1964 was the date on the last 90% silver coins. Silver coins were  actually made up through the early part of 1966 but the 1964 date  was used on all of those. 1965 was usedâ¦ on the clad coins that were  made in that year. So any dime, half dollar or quarter with a date  of 1964 is 90% silver.
Report Abuse. Dimes, Quarters, half dollars, and dollar coins before 1964 are 90% silver. Also half dollars from 1965-1969 have 40% silver in them. Silver nickels were minted during 1942-1945 and the nickels are only 35% silver. Any other nickels other than those dates aren't silver. Source(s): Have about 5 years experience.