liance ▁for ▁armed ▁struggle ▁against ▁South ▁Africa ▁and ▁Rh odes ia . ▁ ▁February ▁▁ 2 8 ▁– ▁E ben ▁D ö ng es ▁is ▁elected ▁second ▁State ▁President ▁but ▁suff ers ▁a ▁stroke ▁before ▁he ▁can ▁take ▁office . ▁ ▁June ▁▁ 1 ▁– ▁Tom ▁Na ud é ▁becomes ▁acting ▁State ▁President ▁of ▁South ▁Africa . ▁▁ 1 2 ▁– ▁The ▁T error ism ▁Act , ▁ 1 9 6 7 ▁is ▁passed . ▁ ▁July ▁▁ 1 4 - 1 5 ▁Snow ▁falls ▁in ▁the ▁Trans va al . ▁The ▁Northern ▁Trans va al ▁records ▁its ▁first ▁snow fall . ▁ ▁The ▁Liber ation ▁Committee ▁of ▁the ▁Organisation ▁of ▁African ▁Unity ▁ur ges ▁" fre edom ▁f igh ters " ▁to ▁in va de ▁South ▁Africa ▁and ▁South ▁West ▁Africa . ▁ ▁August ▁▁ 4 ▁– ▁Military ▁cons cription ▁becomes ▁comp uls ory ▁for ▁all ▁white ▁men ▁in ▁South ▁Africa ▁over ▁the ▁age ▁of ▁ 1 6 . ▁ ▁September ▁▁ 8 ▁– ▁South ▁African ▁Police ▁officially ▁disc lose ▁that ▁S AP ▁counter - ins ur gency ▁units ▁are ▁deployed ▁in ▁Rh odes ia ▁to ▁counter ▁Um kh onto ▁we ▁S iz we . ▁ ▁December ▁▁ 3 ▁– ▁Professor ▁Christ ia an ▁Bar n ard ▁car ries ▁out ▁the ▁world ' s ▁first ▁heart ▁trans plant ▁at ▁Gro ote ▁Sch uur ▁Hospital . ▁ ▁Un known ▁date ▁ ▁The ▁South ▁African ▁Police ▁starts ▁with ▁counter - ins ur gency ▁training . ▁ ▁Um kh onto ▁we ▁S iz we ▁members