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.
90% silver quarters, half dollars and dimes were produced until 1964. From 1965-1970 half dollars have been 40% silver while dimes/quarters contained no silver. From 1971-pres â¦ ent no silver coins have been minted for circulation. Today the US mints various collector coins in silver, but none for general circulation.