What happened to the deciples after Jesus died?

Answer 1

Millions.
Jesus told His followers to go abd make disciples so every Christian/believer in Christ is His disciple.

Of the original 12 there were 11; until a replacement for Judas Escariot could be appointed.

Another thought:

We know that fifty days after his death, there were 120 people gathering together as Christians(Acts 1:15) when holy spirit was poured out on them(Acts 2:16-18/Joel 2:28 - Acts 1:7+8)giving them the special powers they would need to continue Jesus' work for a time. The 'gifts of the spirit', one of which was the ability to speak in other languages, allowed them to preach to people who spoke a foreign tongue about God's kingdom and purposes(Acts 2:5-47)(Matthew 24:14),

Answer 2

After the day of Pentecost, when they were all empowered with the Holy Ghost, they carried on as witnesses of the resurrection of Jesus Christ, preaching everywhere that men should repent and believe the gospel.

Yet there is no record in The Bible of the death of the disciples, but history records that, excepting for John, they were all killed for the Lord Jesus.

Jesus prophesied Peter's death in John 21, before he went up to heaven; and the Bible comments on it thus:

"This spake he, signifying by what death he should glorify God."

Answer 3

Andrew and paul