At which jewish holiday would someone eat matzo at a seder?

Who did the first work in creating vaccines

How does the existence of a site like catus hill demonstrate the challenge that archaeologist face when making theories?

1. the fifteenth amendment guaranteed for all us citizens, regardless of "previous condition of servitude." freedom citizenship voting rights religious tolerance 2. which group was still not allowed to vote following passage of this amendment? women poor men rich men former slaves 3. the fifteenth amendment was the last of the amendments. carpetbagger lincoln reconstruction scalawag